Appendices of the Screening Assessment
Acetone
Chemical Abstracts Service Registry Number
67-64-1
Environment Canada
Health Canada
September 2014
Table of Contents
- Appendix A: Concentrations of Acetone in Environmental Media and Food
- Appendix B: Upper-bounding Estimates of Daily Intake of Acetone by the General Population of Canada
- Appendix C: Estimates of Intake to Acetone from the Use of Cosmetic Products and Household Products
- Appendix D: Summary of Animal Effects Data for Acetone
- Appendix E: Summary of Human Effects Data for Acetone
- Back to the Screening Assessment
Appendix A: Concentrations of Acetone in Environmental Media and Food
Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) |
Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|
Outdoors, all stations | 24 h | 3688 | 2.895 | 0.007 - 35.167 | 6.55 |
Outdoors, all stations | 4 h | 5754 | 2.931 | 0.003 - 80.228 | 12.39 |
Outdoors, Egbert, ON – agricultural | 4 h | 494 | 5.679 | 0.600 - 80.228 | 18.2 |
Outdoors, Windsor, ON – rural | 24 h | 285 | 2.829 | 0.800 - 22.206 | 6.617 |
Outdoors, Winnipeg, MB –commercial | 24 h | 460 | 3.101 | 0.025 - 13.678 | 5.854 |
Outdoors, Port Moody, Metro Vancouver, BC – industrial | 24 h | 299 | 3.873 | 0.05 - 14.202 | 8.946 |
Season | Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) | Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|---|
Winter | Personal | 24 h | 225 | 34.8 | 9.7 - 814.5 | 135.8 |
Winter | Indoor | 24 h | 232 | 29.3 | 5.9 - 673.3 | 134.5 |
Winter | Outdoor | 24 h | 200 | 3.8 | 1.5 - 18.3 | 9.4 |
Summer | Personal | 24 h | 206 | 116.1 | 18.2 - 1871.9 | 475.9 |
Summer | Indoor | 24 h | 217 | 173.8 | 0.01 - 3755.5 | 647.2 |
Summer | Outdoor | 24 h | 216 | 10.1 | 3.9 - 51.6 | 19.8 |
Season | Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range/ (μg/m3) |
Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|---|
Winter | Indoor | 24 h | 224 | 48.0 | 8.6 - 1380.7 | 194.3 |
Winter | Outdoor | 24 h | 215 | 3.0 | 1.2 - 27.2 | 7.4 |
Summer | Indoor | 24 h | 211 | 134.8 | 9.5 - 1977.5 | 538.9 |
Summer | Outdoor | 24 h | 214 | 10.4 | 3.2 - 544.1 | 71.0 |
Season | Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) | Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|---|
Winter | Indoor – all houses | 24 h | 104 | 36.5 | 8.6 - 436.9 | 120.3 |
Winter | Indoor – all houses | 5 days | 89 | 45.2 | 7.5 - 451.9 | 127.5 |
Winter | Indoor – smoker | 24 h | 21 | 37.0 | 11.5 - 436.9 | 113.1 |
Winter | Indoor – smoker | 5 days | 19Footnote Appendix A Table A1-4[a] | 45.2 | 10.1 - 451.9 | 451.9 |
Winter | Indoor – non-smoker | 24 h | 83 | 35.4 | 8.6 - 192.6 | 120.3 |
Winter | Indoor – non-smoker | 5 days | 70 | 45.2 | 7.5 - 202.9 | 127.5 |
Winter | Outdoor – all houses | 24 h | 94 | 3.4 | 0.6 - 36.0 | 9.6 |
Winter | Outdoor – smoker | 24 h | 17[a] | 3.1 | 1.2 - 13.8 | 13.8 |
Winter | Outdoor – non-smoker | 24 h | 77 | 3.5 | 0.6 - 36.0 | 9.6 |
Summer | Indoor – all houses | 24 h | 105 | 41.1 | 11.3 - 1451.7 | 156.5 |
Summer | Indoor – all houses | 5 days | 101 | 51.7 | 13.0 - 867.9 | 318.2 |
Summer | Indoor – smoker | 24 h | 13[a] | 32.4 | 14.0 - 101.8 | 101.8 |
Summer | Indoor – smoker | 5 days | 13[a] | 52.7 | 23.5 - 124.1 | 124.1 |
Summer | Indoor – non-smoker | 24 h | 91 | 42.4 | 11.3 - 1451.7 | 241.3 |
Summer | Indoor – non-smoker | 5 days | 88 | 51.7 | 13.0 - 867.9 | 327.6 |
Summer | Outdoor – all houses | 24 h | 108 | 8.6 | 3.0 - 33.0 | 21.1 |
Summer | Outdoor – all houses | 5 days | 97 | 11.0 | 4.7 - 303.4 | 106.4 |
Summer | Outdoor – smoker | 24 h | 12[a] | 7.2 | 3.4 - 18.4 | 18.4 |
Summer | Outdoor – smoker | 5 days | 14[a] | 12.9 | 4.7 - 245.9 | 245.9 |
Summer | Outdoor – non-smoker | 24 h | 95 | 8.6 | 3.0 - 33.0 | 22.2 |
Summer | Outdoor – non-smoker | 5 days | 82 | 10.8 | 5.3 - 303.4 | 102.2 |
Season | Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) | Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|---|
Winter | Indoor | 24 h | 312 | 21.8 | 4.0 - 2188.0 | 108.7 |
Winter | Outdoor | 24 h | 286 | 2.8 | 1.2 - 25.3 | 6.0 |
Summer | Indoor | 24 h | 331 | 26.5 | less than 0.06 - 1285.0 | 288.5 |
Summer | Outdoor | 24 h | 324 | 4.7 | 2.1 - 50.2 | 9.9 |
Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) |
Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|
Indoor | 100 min | 75 | 28.5 | 0.015 - 455.9 | 90th: 76.4 |
Outdoor | 100 min | 74 | 0.2 | 0.015 - 15.3 | 90th: 3.6 |
Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) |
Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|
Indoor – passive | 48 h | 398 | 8.25 | less than 0.4 - ns | 45.8 |
Outdoor – passive | 48 h | 395 | 4.39 | less than 0.4 - ns | 19.6 |
Personal – passive, adult | 48 h | 409 | 8.36 | less than 0.4 - ns | 57.7 |
Personal – passive, child (15–19 years) | 48 h | 169 | 11.5 | less than 0.4 - ns | 81.0 |
In-vehicle | 55–459 min | 115 | 4.08 | less than 13.38 - ns | 45.0 |
Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) | Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|
Indoor | 2 h | 227 | 21 | less than 0.25 - ns | 90th: 110 |
Outdoor | 2 h | 114 | 6.4 | less than 0.25 - ns | 90th: 44 |
Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) | Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|
Indoor (94/100 detected) | 24 h | 100 | 34.5 | less than 12 - 2900 | 190 |
Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) |
Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|
Indoor – non-smoking home | 14 h | 60 | 33.88 | 2.81 - 389.71 | ns |
Indoor – smoking home | 14 h | 29 | 39.33 | 19.73 - 664.99 | ns |
Indoor – non-smoking work | 7 h | 51 | 28.53 | 5.48 - 414.30 | ns |
Indoor – smoking work | 7 h | 28 | 60.53 | 8.26 - 21 083.81 | ns |
Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) |
Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|
Indoor | 8–10 h | 56 | 29 | 7.1 - 220 | ns |
Study, location and type of sample | Sample duration | No. of samples | Concentration Median (μg/m3) |
Concentration Range (μg/m3) |
Concentration 95th percentile (μg/m3) |
---|---|---|---|---|---|
Outdoor – passive | 7 days | 66 | 4.5 | 0.3 - 12.8 | 9.3 |
Indoor – passive, residential homes | 7 days | 88 | 31 | 10.4 - 165.1 | 94.2 |
Indoor – passive, public buildings/schools | 7 days | 129 | 19.5 | 1.4 - 336.8 | 59.6 |
Personal – passive | 3 days | 45 | 31 | 11.8 - 225.9 | 66.7 |
Location | Sampling period | No. of samples | Mean (μg/L) | Range (µg/L) | Reference |
---|---|---|---|---|---|
Ottawa, Ontario | Fall 2002 | 71 | 11.0 | less than 2–131 P95 = 48 |
2003 personal communication from J. Zhu Health Canada Chemistry Research Division to Existing Substances Risk Assessment Bureau, unreferenced |
24 US communities | 2002–2005 | 150 | ns | less than 6–11.73 | USGS 2007 |
Lower Rio Grande Valley, TX, USA | 1993 | 8 | nd | nd–10.7 | US EPA 1994 |
Private and community wells in Wisconsin, USA | 1980–1984 | ns | nd | less than nd | Krill and Sonzogni 1986 |
Canada (potable water treatment facilities) | 1979 | 30 plants | nd | nd ( less than 1000) | Otson et al. 1982 |
Seattle, Washington, USA | 1975 | ns | ns | Detected – 1 | US EPA 1975 |
Location | Sampling period | No. of samples | Mean (μg/L) | Range (µg/L) | Reference |
---|---|---|---|---|---|
9 US communities | 2002–2005 | 241 | -- | less than 7 | USGS 2007 |
Streams in New York and New Jersey, USA | January 1997 | 42 | 2.6 median estimated | Max: 6.6 | O’Brien et al. 1997 |
Seawater | ns | ns | ns | 5–53 | Corwin 1969 |
Storm water runoff, 20 industrial sites, North Carolina, USA | 1993–1994 | 20 | ns | less than 100 (7 sites) greater than 100 (2 sites) |
Line et al. 1997 |
Location | Sampling period | No. of samples | Mean (μg/L) | Range (µg/L) | Reference |
---|---|---|---|---|---|
15 US communities | 2002–2005 | 223 | ns | less than 6–68.36 | USGS 2007 |
In vicinity of 34 disposal sites from 8 American regions | ns | 254 | ns | Detected (not quantified) |
Plumb 1991 |
New Jersey, USA | ns | ns | ns | Max: 3000 | US EPA 1980 |
Residential well water in vicinity of a landfill site, Delaware, USA | 1977 | 6 | ns | 0.2–0.7 | DeWalle and Chian 1981 |
Groundwater from landfill sites in Minnesota, USA, with good water quality | ns | 7 | ns | nd–25 | Sabel and Clark 1984 |
Groundwater from sites in Minnesota, USA, contaminated with landfill leachate | ns | 13 | ns | nd–3000 | Sabel and Clark 1984 |
Location | Sampling period | No. of samples | Mean (μg/L) | Range (µg/L) | Reference |
---|---|---|---|---|---|
Industrial wastewater, 4000 sites, USA | ns | ns | 2500 (highest median value, printing and publishing plants) | 138–37 709 | OECD 1999 |
Industrial and municipal landfill leachate from sites in the USA | 1982, 1984 | ns | ns | 50–62 000 | Brown and Donnelly 1988 |
Landfill leachate, Delaware, USA | 1977 | 1 | 43 700 | na | DeWalle and Chian 1981 |
Leachate from sites in Minnesota, USA | ns | 6 | ns | 140–13 000 | Sabel and Clark 1984 |
Septic tank effluent from septic tank serving 97 homes in Tacoma, Washington, USA | 1982 | 7 (24 h composite samples) | 70 300 (one measurement only) | ns | DeWalle et al. 1985 |
Item sampled | Sampling period | No. of samples | Mean concentration (µg/kg) | Concentration range (µg/kg) | Reference |
---|---|---|---|---|---|
Whole, 1% and 2% commercial milk samples from Las Vegas, Nevada, USA | January–February 2002 | 19 (whole) 8 (2%) 5 (1%) |
29 30 30 |
5–42 22–36 25–36 |
Hiatt and Pia 2004 |
Raw (unpasteurized) milk from cows in southern Ontario dairy herds | January–December 1999 | 10 375 cows | 1280 (raw milk basis) |
0–269 900 (raw milk basis) |
Wood et al. 2004 |
Raw milk from hyperketonemic cows in SwedenFootnote Appendix A Table A3-1 [b] | 26 h | Samples from 8 cows | ns | 18 048–219 351 | Andersson and Lundstrom 1984 |
Butter from Oregon, USA | ns | 1 | 130 | ns | Siek and Lindsay 1970 |
Cheddar cheese from USA | ns | 3 | 8500 (approximate) |
ns | Day et al. 1960 |
Cheese | ns | ns | ns | 100–8500 | Maarse and Visscher 1989 |
Yoghurt | ns | ns | ns | 300–58 000 | Maarse and Visscher 1989 |
Item sampled | Sampling period | No. of samples | Mean concentration (µg/kg) | Concentration range (µg/kg) | Reference |
---|---|---|---|---|---|
Strawberries | ns | ns | ns | 1300–3000 | van Straten and Maarse 1983 |
Currants | ns | ns | ns | Max: 1200 | Maarse and Visscher 1989 |
Black currants from Sweden | Harvested in 1962; stored until 1964 | ns | 2000 | ns | Andersson and von Sydow 1966 |
Mangos from Sri Lanka | ns | 3 cultivars | Trace | ns | MacLeod and Pieris 1984 |
Apples from Belgium | ns | ns | 600 (dry weight) | ns | Feys et al. 1980 |
Apples | ns | ns | ns | 130 | Maarse and Visscher 1989 |
Item sampled | Sampling period | No. of samples | Mean concentration (µg/kg) | Concentration range (µg/kg) | Reference |
---|---|---|---|---|---|
Canned and frozen sweet corn from Oregon, USA | ns | 7 | 1500 | 300–2400 | Bills and Keenan 1968 |
Carrots from Oregon, USA | 1969 growing season | 3 | 240 | 200–310 | Heatherbell et al. 1971 |
Carrots | ns | ns | ns | 100–800 | Maarse and Visscher 1989 |
Common, lima and mung beans and soybeans (country of origin not specified) | ns | ns | 880 | 260–2000 | Lovegren et al. 1979 |
Split peas (country of origin not specified) | ns | ns | 530 | ns | Lovegren et al. 1979 |
Lentils (country of origin not specified) | ns | ns | 230 | ns | Lovegren et al. 1979 |
Soybean | ns | ns | ns | 4–1600 | Maarse and Visscher 1989 |
Potato chips from USA | ns | ns | 110 (fresh) 255 (stale) |
ns | Mookherjee et al. 1965 |
Tomatoes from Indiana, USA | ns | 3 varieties | 810 | 640–1030 | Nelson and Hoff 1969 |
Tomatoes | ns | ns | ns | 600–16 000 | van Straten and Maarse 1983 |
Item sampled | Sampling period | No. of samples | Mean concentration (µg/kg) | Concentration range (µg/kg) | Reference |
---|---|---|---|---|---|
Bread | ns | ns | ns | 680–10 100 | Maarse and Visscher 1989 |
Rice | ns | ns | ns | 400 | van Straten and Maarse 1983 |
Item sampled | Sampling period | No. of samples | Mean concentration (µg/kg) | Concentration range (µg/kg) | Reference |
---|---|---|---|---|---|
Beer | ns | ns | ns | 20–1700 | van Straten and Maarse 1983 |
Beer from USA | ns | ns | ns | 600–1400 | Rosculet and Rickard 1968 |
Cider apple juice from Britain | 1971–1974 | 4 cultivars | 109.5 µg/L | 6–200 µg/L | Williams et al. 1980 |
Brandy | ns | ns | ns | 4000 | Maarse and Visscher 1989 |
Location | Sampling period | No. of samples | Detection limit (ng/g) | Mean concentration (ng/g) | Reference |
---|---|---|---|---|---|
Vega Alta Public Supply well sites, Puerto Rico | ns | ns | ns | 9500 | ATSDR 1988 |
Summit National Site, Ohio, USA (toxic waste site) | ns | ns | ns | 9484 | US EPA 1988 |
Appendix B: Upper-bounding Estimates of Daily Intake of Acetone by the General Population of Canada
Route of exposure | 0–6 monthsFootnote Appendix B Table B1[a],Footnote Appendix B Table B1[b],Footnote Appendix B Table B1 [c]Breast fed | 0–6 months[a],[b],[c]Formula fed | 0–6 months[a],[b],[c]Not formula fed | 0.5–4 yearsFootnote Appendix B Table B1[d] | 5–11 years[a] | 12–19 years[b] | 20–59 years[c] | 60+ years[d] |
---|---|---|---|---|---|---|---|---|
AirFootnote Appendix B Table B1 [e] | 133.3 | 133.3 | 133.3 | 285.5 | 222.6 | 126.6 | 108.7 | 94.5 |
Drinking waterFootnote Appendix B Table B1[f] | Not applicable | 5.1 | 1.3 | 0.6 | 0.6 | 0.3 | 0.3 | 0.3 |
Food and beveragesFootnote Appendix B Table B1[g] | Not applicable | 5.1 | 396.2 | 363.8 | 276.5 | 173.8 | 148.4 | 126.0 |
SoilFootnote Appendix B Table B1[h] | 0.04 | 0.04 | 0.04 | 0.06 | 0.02 | 4.8 × 10−3 | 4.0 × 10−3 | 4.0 × 10−3 |
Total intake | 133.3 | 138.4 | 530.7 | 650.0 | 499.7 | 300.7 | 257.4 | 220.8 |
Appendix C: Estimates of Intake to Acetone from the Use of Cosmetic Products and Household Products
Product | Acetone concentration (%) | Peak event Time (min) |
Peak event Concentration (mg/m3) | Mean event Time (min) |
Mean event Concentration (mg/m3) | 4 h TWAFootnote Appendix C Table C1 [a]Concentration (mg/m3) | Estimated intake for adult CanadianFootnote Appendix C Table C1 [b] (mg/kg-bw per event) |
---|---|---|---|---|---|---|---|
Spray paint | 60 | 15 | 4415 | 20 | 2788 | 232 | 9 |
Concrete sealant | 25 | 60 | 3830Footnote Appendix C Table C1[c] | 60 | 2105 | 526 | 20 |
Cleaner/ degreaser | 100 | 10 | 1500 | 10 | 762 | 32 | 1.2 |
Product | Acetone concentration (%) | Dermal (mg/kg-bw per event) |
Inhalation (mg/kg-bw per event) |
Total (mg/kg-bw per event) |
---|---|---|---|---|
Cleaner/ degreaser | 100 | 0.4 | 1.2 | 1.6 |
Product | Acetone concentration (%) | Peak event Time (min) |
Peak event Concentration (mg/m3) | Mean event Time (min) | Mean event Concentration (mg/m3) | 4 h TWAFootnote Appendix C Table C3 [a]Concentration (mg/m3) |
---|---|---|---|---|---|---|
Nail remover | 100 | 30 | 123 | 30 | 64 | 8.4 |
Hairspray | 30 | 0.25 | 209 | 25 | 141 | 15 |
Face mask | 100 | 0.33 | 117 | 25 | 79 | 8.7 |
Product | Acetone concentration (%) | DermalFootnote Appendix C Table C4 [a]12–19 years (mg/kg-bw per event) | Dermal[a] 20–59 years (mg/kg-bw per event) | InhalationFootnote Appendix C Table C4 [b]12–19 years (mg/kg-bw per event) | Inhalation[b] 20–59 years (mg/kg-bw per event) | Total 12–19 years (mg/kg-bw per event) | Total 20–59 years (mg/kg-bw per event) |
---|---|---|---|---|---|---|---|
Nail remover | 100 | 0.58 | 0.56 | 0.37 | 0.32 | 0.95 | 0.88 |
Hairspray | 30 | N/A | N/A | 0.67 | 0.58 | 0.67 | 0.58 |
Face mask | 100 | N/A | 0.04 | N/A | 0.33 | N/A | 0.37 |
Face cleanser | 10 | 0.03 | 0.06 | N/A | N/A | 0.03 | 0.06 |
Face Moisturizer | 0.3 | 0.11 | 0.09 | N/A | N/A | 0.11 | 0.09 |
Product type | Assumptions | Estimated concentrations and daily intakes |
---|---|---|
Spray paint | Concentration of acetone in spray paint: 60%, maximum concentration of acetone found in spray paint (HPD 1993– ) Applied amount: 300 g, entire can (Bremmer and van Engelen 2007) Room volume: 34 m3 (Bremmer and van Engelen 2007), similar to small garages in Canada (reported sizes range from 26 m3 in northern Canada to 102 m3 in southern Canada) (contractor report prepared for Existing Substances Risk Assessment Bureau, 2011, unreferenced) Ventilation rate: 1.5/h, well ventilated (Bremmer and van Engelen 2007) Emission rate = (300 g/15 min) × 0.6 fraction acetone = 12 g/min Room supply air exchange rate (AER) = (1.5/h × 34 m3)/60 min = 0.85 m3/min Estimated TWA concentration in air using Industrial Hygiene Model (IHMod) “Well-mixed Room Model with a Constant Emission Rate” (AIHA 2009a):
|
Model output: Peak concentration, 15 min = 4415 mg/m3 Mean event concentration, 20 min = 2788 mg/m3 |
Concrete sealant | Concentration of acetone in concrete sealant: 25% weight/weight basis, maximum value found (Deco-Crete Supply 2010a) Applied amount: 3.8 L, based on product application directions (400 ft2/gallon; Deco-Crete Supply 2010b) Density of paint: 0.92 g/mL (Deco-Crete Supply 2010a) Application duration: 60 min (professional judgment) Ventilation rate: 0.6/h (standard room; Bremmer and van Engelen 2007) Mass acetone applied = 3.8 L × 0.92 g/mL × 0.25 wt. fraction = 874 g Emission rate = mass applied ÷ drying time = 874 g/120 min = 7300 mg/min Room supply AER = (0.6/h × 86 m3)/60 min = 0.86 m3/min Estimated TWA concentration in air using IHMod “Well-mixed Room Model with a Constant Emission Rate” (AIHA 2009a):
|
Model output: Peak event concentration, 60 min = 3830 mg/m3 Mean event concentration, 60 min = 2105 mg/m3 Peak concentration, 120 min = 5931 mg/m3 |
Cleaner/ degreaser | Concentration of acetone: 100%, maximum value (HPD 1993– ) Exposure duration: 10 min (Bremmer and van Engelen 2007) Density of acetone: 0.790 g/mL (West and Lide 1989) Air exchange rate: 0.2 m3/min (derived from 0.6/h ventilation rate for an unspecified room in Bremmer et al. 2006) Amount used: 40 mL (professional judgment) Room volume: 20 m3 (volume of unspecified room in Bremmer et al. 2006) Maximum dermal absorption rate (flux): 0.687 mg/(cm2·h) (AIHA 2009c) One-half surface area of one hand, 20–59 years: 228 cm2 (Health Canada 1995) Body weight, 20–59 years: 70.9 kg (Health Canada 1998) Absorbed(Dermal) = Absorption rate × Surface area × Duration = 0.687 mg/(cm2·h) × 228 cm2 × 1/6 h = 26 mg Intake(Dermal) = Absorbed(Dermal) ÷ Body weight = 26 mg ÷ 70.9 kg = 0.4 mg/kg-bw Emission rate = (Amount used – Amount absorbed dermally) ÷ Time of use × Density = [(40 mL × 0.790 g/mL × 1000 mg/g) – 26 mg] ÷ 10 min = 3150 mg/min Room supply AER = (0.6/h × 20 m3)/60 min = 0.2 m3/min Estimated TWA concentration in air using IHMod “Well-mixed Room Model with a Constant Emission Rate” (AIHA 2009a):
|
Calculated intake from dermal exposure on day of event = 0.4 mg/kg-bw Model output: Peak concentration, 10 min = 1500 mg/m3 Mean event concentration, 10 min = 762 mg/m3 |
Artificial nail remover | Concentration of acetone: 100% 2011 emails from the Consumer Product Safety Directorate, Health Canada, to the Existing Substances Risk Assessment Bureau, Health Canada; unreferenced) Exposure duration: 30 min (Bremmer and van Engelen 2007) Air exchange rate: 0.2 m3/min (derived from 0.6/h ventilation rate for an unspecified room in Bremmer et al. 2006). Room volume: 20 m3 (volume of unspecified room in Bremmer et al. 2006) Maximum dermal absorption rate: 0.687 mg/(cm2·h) (AIHA 2009c) Body weight, 12–19 years: 59.4 kg (Health Canada 1998) Body weight, 20–59 years: 70.9 kg (Health Canada 1998) Surface area fingertips, 1/8th surface area of hands, 12–19 years: 100 cm2 (Health Canada 1995) Surface area fingertips, 1/8th surface area of hands, 20–59 years: 115 cm2 (Health Canada 1995) 12–19 years: Absorbed(Dermal) = Absorption rate × Surface area × Duration ÷ Body weight = 0.687 mg/(cm2·h) × 100 cm2 × 0.5 h ÷ 59.4 kg = 0.58 mg/kg-bw per day 20–59 years: Absorbed(Dermal) = Absorption rate × Surface area × Duration ÷ Body weight = 0.687 mg/(cm2·h) × 115 cm2 × 0.5 h ÷ 70.9 kg = 0.56 mg/kg-bw per day Room supply AER = (0.6/h × 20 m3)/60 min = 0.2 m3/min Estimated evaporation rate using IHMod “Estimating Contaminant Generation Rate from Small Spills” model (AIHA 2009a):
Mass emission rate of acetone from pool: 95.1 mg/min Estimated TWA concentration in air using IHMod “Well-mixed Room Model with a Constant Emission Rate” (AIHA 2009a):
|
Calculated: 12–19 years internal dermal dose, 30 min = 0.58 mg/kg-bw per day 20–59 years internal dermal dose, 30 min = 0.56 mg/kg-bw per day Model output: Peak concentration, 30 min = 123 mg/m3 Mean event concentration, 30 min = 64 mg/m3 |
Face mask | Concentration of acetone: 100% (2011 emails from the Consumer Product Safety Directorate, Health Canada, to the Existing Substances Risk Assessment Bureau, Health Canada; unreferenced). Amount used: 1.2 g (Loretz et al. 2005) Air exchange rate: 0.333 m3/min (derived from 2/h ventilation rate for bathroom in Bremmer et al. 2006) Room volume: 10 m3 (volume of unspecified room in Bremmer et al. 2006) Surface area one-half head, 20–59 years: 638 cm2(Health Canada 1995) Bathroom supply AER = (2/h × 10 m3)/60 min = 0.333 m3/min IH SkinPerm model Input parameters:
Output:
Dermal estimated daily intake: Daily intake = Event dose × Use frequency ÷ Body weight = 2.7 mg × 1 time/day ÷ 70.9 kg = 0.04 mg/kg-bw per day Emission rate to air = (Amount used – Amount absorbed dermally) ÷ Time to evaporate × = (1200 mg – 2.7 mg) ÷ 1/3 min = 3530 mg/min Estimated TWA concentration in air using IHMod “Well-mixed Room Model with a Constant Emission Rate” (AIHA 2009a):
|
Calculated: Internal dermal dose = 0.04 mg/kg-bw Model output: Peak concentration, 0.33 min = 117 mg/m3 Mean event concentration, 25 min = 79 mg/m3 |
Hairspray | Concentration of acetone: 30% (2011 emails from the Consumer Product Safety Directorate, Health Canada, to the Existing Substances Risk Assessment Bureau, Health Canada; unreferenced). Spray duration: 0.24 min (Bremmer et al. 2006) Emission rate: 28 000 mg/min (Bremmer et al. 2006) Air exchange rate: 0.333 m3/min (derived from 2/h ventilation rate for bathroom in Bremmer et al. 2006) Room volume: 10 m3 (Bremmer et al. 2006) Exposure duration: 25 min (US EPA 2011) Bathroom supply AER = (2/h × 10 m3)/60 min = 0.333 m3/min Estimated TWA concentration in air using IHMod “Well-mixed Room Model with a Constant Emission Rate” (AIHA 2009a):
|
Model output: Peak concentration, 0.25 min = 209 mg/m3 Mean event concentration, 25 min = 141 mg/m3 |
Face moisturizer | Concentration of acetone: 0.3% (2011 emails from the Consumer Product Safety Directorate, Health Canada, to the Existing Substances Risk Assessment Bureau, Health Canada; unreferenced). Amount used: 1.2 g (Loretz et al. 2005) Frequency: 1.8/day (Loretz et al. 2005) Body weight, 12–19 years: 59.4 kg (Health Canada 1998) Body weight, 20–59 years: 70.9 kg (Health Canada 1998) Retention factor: 1 (Health Canada 2012b) Absorbed fraction: 1 Dermal event dose = Concentration × Product amount = 0.3% × 1200 mg = 3.6 mg acetone applied per event Daily intake = Event dose × Use frequency ÷ Body weight 12–19 years: Daily intake = 3.6 mg × 1.8 times/day ÷ 59.4 kg = 0.11 mg/kg-bw per day 20–59 years: Daily intake = 3.6 mg × 1.8 times/day ÷ 70.9 kg = 0.09 mg/kg-bw per day |
Calculated: Internal daily dermal dose, 12–19 years = 0.11 mg/kg-bw per day Internal daily dermal dose, 20–59 years = 0.09 mg/kg-bw per day |
Face cleanser | Concentration of acetone: 10% (2011 emails from the Consumer Product Safety Directorate, Health Canada, to the Existing Substances Risk Assessment Bureau, Health Canada; unreferenced). Amount used: 2.6 g (Loretz et al. 2008) Frequency of use, 12–19 years: 0.7/day (Health Canada 2012b) Frequency of use, 20–59 years: 1.7/day (Loretz et al. 2008) Body weight, 12–19 years: 59.4 kg (Health Canada 1998) Body weight, 20–59 years: 70.9 kg (Health Canada 1998) Retention factor: 0.01 (Health Canada 2012b) Absorbed fraction: 1 Dermal event dose = Concentration × Retention factor × Product amount = 10% × 0.01 × 2600 mg = 2.6 mg acetone applied per event Dermal daily intake = Event dose × Use frequency ÷ Body weight 12–19 years: Daily intake = 2.6 mg × 0.7 times/day ÷ 59.4 kg = 0.03 mg/kg-bw per day 20–59 years: Daily intake = 2.6 mg × 1.7 times/day ÷ 70.9 kg = 0.06 mg/kg-bw per day |
Calculated: Internal daily dermal dose, 12–19 years = 0.03 mg/kg-bw per day Internal daily dermal dose, 20–59 years = 0.06 mg/kg-bw per day |
Appendix D: Summary of Animal Effects Data for Acetone
Route of Entry / Reference | Species | Protocol | Results |
---|---|---|---|
Inhalation / Safronov et al. 1993 | Male rats, (number per group not specified) | Exposure to varying (unspecified) concentrations for 15, 30, 60, 120 or 240 min | 15 min LC50 = 724 000 mg/m3 4 h LC50 = 71 000 mg/m3 Other LC50 values not available in the secondary source |
Inhalation / Safronov et al. 1993 | Male mice (no other details available from secondary source) | Exposure to varying (unspecified) concentrations for 15, 30, 60, 120 or 240 min | 15 min LC50 = 604 000 mg/m3 4 h LC50 = 44 000 mg/m3 Other LC50 values not available in the secondary source |
Oral / Kimura et al. 1971 | Sprague-Dawley rats, newborn, 14 days old, younger adult and older adult (6 males each in young and older adult groups, 6–12 of both sexes in newborn and 14-day-old groups) | Single exposure via gavage to 2.2–9.1 mL/kg (1700- mg/kg-bw) | LD50 = 1700 mg/kg-bw (newborn) LD50 = 4400 mg/kg-bw (14-day-old) LD50 = 7100 mg/kg-bw (younger adult) LD50 = 6700 mg/kg-bw (older adult) |
Oral / Freeman and Hayes 1985 | Rats (strain and number not reported) | Exposure to varying (unspecified) doses | LD50 = 5800 mg/kg-bw |
Oral / Tanii et al. 1986 | Male ddY mice (4 animals per dose group) | Exposure to four (unspecified) doses; animals pretreated with intraperitoneal injection of olive oil 24 h prior to acetone administration | LD50 = 5200 mg/kg-bw |
Oral / Krasavage et al. 1982 | Rabbits | Detailed information not available | LD50 = 5300 mg/kg-bw |
Dermal / Roudabush et al. 1965 | Male and female White rabbits (4 animals per dose group) | Exposure to a minimum of 3 doses up to 9.4 mL/kg (7400 mg/kg-bw); other doses not specified | LD50 greater than 7400 mg/kg-bw |
Dermal / Roudabush et al. 1965 | Male Hartley guinea pigs, (4 animals per dose group) | Exposure to a minimum of 3 doses up to 9.4 mL/kg (7400 mg/kg-bw); other doses not specified | LD50 greater than 7400 mg/kg-bw |
Dermal / Smyth et al. 1962 | Rabbits | Exposure to doses up to 20 mL/kg (15 800 mg/kg-bw) | LD50 greater than 15 800 mg/kg-bw |
Route of Entry / Reference | Species | Protocol | Results |
---|---|---|---|
Inhalation / Kane et al. 1980 | Male Swiss Webster mice (4 per group) | Exposure to unspecified concentrations for 10 min | RD50 = 184 136 mg/m3 (sensory irritation) |
Inhalation / De Ceaurriz et al. 1984 | Male Swiss OF1 mice | Exposure to unspecified concentrations for 15 min | RD50 = 55 776 mg/m3 (sensory irritation) |
Inhalation / Schaper and Brost 1991 | Male Swiss Webster mice (4 per group) | Exposure for 30 min once or on 5 consecutive days to 6000 ppm (14 253 mg/m3) | No change in respiratory cycle (time of inspiration/expiration, time of pause between breaths) or thoracic volume displacement (tidal volume) |
Dermal and ocular / Smyth et al. 1962 | Albino rabbits (5 per group) | Uncovered application of 0.01 mL of acetone to clipped skin | No irritation to the skin |
Dermal and ocular / Carpenter and Smyth 1946; Smyth et al. 1962 | Rabbits (no other details provided) | Instillation of various volumes and concentrations of acetone to the cornea | Severe burn to the cornea from 0.005 mL of acetone (grade 5 on a scale of 10 for grading degree of corneal necrosis) |
Dermal and ocular / Iversen et al. 1988 | CD-1 mice (no other details in secondary sources) | 0.2 mL of acetone to shaved skin | Increased DNA synthesis and moderate hyperplasia after 24 h; considered signs of slight irritation |
Dermal and ocular / Descotes 1988 | Male and female mice, various strains | Topical application of acetone 100% on both sides of ear on days 0 and 2, and scapular subcutaneous injection of 0.05 mL acetone 100% on day 2 | Mouse ear sensitization assay; no change in ear thickness |
Dermal and ocular / Nakamura et al. 1994 | Female albino guinea pigs, Hartley strain (2–10 per group) | Initial intradermal injection and topical application of acetone 100%, followed by intradermal injection of 0.01 mL acetone 21 days later | Guinea pig maximization test; no erythema or edema formation was observed |
Dermal and ocular / Montelius et al. 1996 | Mice, unspecified strain (4 per group) | Daily topical application of 25 µg of acetone or of a mix of acetone and olive oil in various proportions according to local lymph node assay protocol | Acetone induced a non-significant increase in cell proliferation; proliferative response increased only as the proportion of olive oil increased |
Route of Entry / Reference | Species | Protocol | Results |
---|---|---|---|
Oral / NTP 1991 |
Male and female F344 rats (5 per sex per group) | Exposed to 0, 5000, 10 000, 20 000, 50 000, 100 000 ppm (intakes reported by authors: males: 0, 714, 1616, 2559, 4312, 6942 mg/kg-bw per day; females: 0, 751, 1485, 2328, 4350, 8560 mg/kg-bw per day) of acetone in drinking water for 14 days | No deaths occurred greater than or equal to 2559/2328 mg/kg-bw per day: ↑ liver wt. (male/female), ↑ kidney wt. (female) (non-adverse) greater than or equal to 4312/4350 mg/kg-bw per day: ↓ bw, ↑ kidney wt. (male/female),↑ relative testis wt in male greater than or equal to 6942/8560 mg/kg-bw per day: bone marrow hypoplasia (male), ↓ bw (female) LOAEL = 4312 mg/kg-bw per day, based on 13% decreased body weights in males relative to controls |
Oral / NTP 1991 |
Male and female B6C3F1mice (5 per sex per group) | Exposed to 0, 5000, 10 000, 20 000, 50 000, 100 000 ppm (intakes reported by authors: males: 0, 965, 1579, 3896, 6348, 10 314 mg/kg-bw per day; females: 0, 1569, 3023, 5481, 8804, 12 725 mg/kg-bw per day) of acetone in drinking water for 14 days | greater than or equal to 965/1569 mg/kg-bw per day: ↑ liver wt. (male) greater than or equal to 3896/5481 mg/kg-bw per day: ↑ centrilobular hepatocellular hypertrophy (male), ↑ liver wt. (female) greater than or equal to 6348/8804 mg/kg-bw per day: ↑ kidney wt. (male), ↑ centrilobular hepatocellular hypertrophy, ↑ kidney wt. (female) LOAEL = 3896 mg/kg-bw per day, based on liver hypertrophy in males |
Route of Entry / Reference | Species | Protocol | Results |
---|---|---|---|
Inhalation / Bruckner and Peterson 1981b | Male ARS/Sprague-Dawley rats (5 per group) | Exposure to 0 or 45 100 mg/m3 (0, 19 000 ppm) for 3 h/day, 5 days/week, for 8 weeks, with additional group sacrificed after 2, 4 and 8 weeks of exposure and after 2-week recovery | No treatment-related effects on blood chemistry, enzymatic activity or histology of the heart, lung, brain and liver. Body weight gain was slightly lower throughout the experiment, but the difference was not statistically significant. Decrease in absolute brain weight at 4 and 8 weeks at 45 100 mg/m3. Decrease in absolute kidney weight at 4 weeks at 45 100 mg/m3, but not at 8 weeks. No statistically significant change in organ weights compared with controls after 2-week recovery.Relative organ weights were consistently higher in exposed rats (data not provided). |
Inhalation / Buron et al. 2009 | Female OF-1 mice (10–20 per group) | Exposure to fresh air or 4 mL for 5 h/day, 5 days/week, for 4 weeks (concentration reported by authors to rise during first 1.5 h to a constant level of 8000 ppm [19 000 mg/m3] for the remaining 3.5 h) |
Behavioural effects: Olfactory sensitivity (assessed by how the mice avoided acetone in a maze) increased (less time spent in the acetone compartment of maze) during exposure (weeks 2 and 4) through the end of the post-exposure period (weeks 6 and 8) Histological examination:
Immunochemistry:
(Other subchronic inhalation study :Christoph et al. 2003; listed under neurotoxicity). |
Oral / Woolhiser et al. 2003 | Male CD-1 mice (8 per group) | Exposure to 0, 121, 621, 1144 mg/kg-bw per day (concentrations reported by authors: 0, 600, 3000, 6000 ppm acetone in drinking water) for 28 days | No deaths occurred, and no clinical signs of toxicity No changes in body weight No treatment-related effects on hematological parameters (total and differential white blood cells, red blood cells, hemoglobin, hematocrit, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, platelets) No effects on spleen or thymus weight or on total or differential white blood cell counts No effects on SRBC antibody response NOAEL = 1144 mg/kg-bw per day (highest dose tested) |
Oral / American Biogenics Corporation 1986 | Male and female Sprague-Dawley rats (30 per sex per group) (10 for interim sacrifice and 20 evaluated at completion of the study) |
Exposure to 0, 100, 500, 2500 mg/kg-bw per day by gavage in water for 90 days | No effects on survival or food consumption greater than or equal to 500 mg/kg-bw per day: ↑ kidney wt., ↑ liver wt. (female), ↓ body wt. (female), accentuation of renal proximal tubule generation and intracytoplasmic hyaline droplet accumulation (male) greater than or equal to 2500 mg/kg-bw per day: ↑ kidney wt., ↑ liver wt., ↓ brain wt., ↑ ALT, ↑ mean corpuscular hemoglobin, mean corpuscular volume, ↓ platelets, glucose, potassium (male); ↑ relative heart wt. (female), ↑ hemoglobin, hematocrit (male/female), accentuation of renal proximal tubule generation and intracytoplasmic hyaline droplet accumulation (male), accentuation of renal proximal tubular degeneration (female) LOAEL = 2500 mg/kg-bw per day, based on significant increase in absolute kidney weights supported by histopathological findings |
Oral / NTP 1991 | Male and female F344/N rats (10 per sex per group) | Exposure to 0, 2500, 5000, 10 000, 20 000, 50 000 ppm (intakes reported by authors: males: 0, 200, 400, 900, 1700, 3400 mg/kg-bw per day; females: 0, 300, 600, 1200, 1600, 3100 mg/kg-bw per day) of acetone in drinking water for 13 weeks | No effects on survival, and no clinical signs of toxicity or ophthalmic irregularities greater than or equal to 200/300 mg/kg-bw per day: ↑ mean corpuscular hemoglobin, mean cell volume (male) greater than or equal to 400/600 mg/kg-bw per day: ↓ hematocrit, hemoglobin, erythrocytes, reticulocytes (female) greater than or equal to 900/1200 mg/kg-bw per day: ↑↓ mean corpuscular hemoglobin, mean cell volume, reticulocytes (female) greater than or equal to 1700/1600 mg/kg-bw per day: ↓ water consumption, ↑ severity of nephropathy, ↑↓ lymphocytes, leukocytes, hematocrit, hemoglobin, mean corpuscular hemoglobin, mean cell volume, erythrocytes, reticulocytes (female), ↓ platelets (male/female), ↑ spleen pigmentation (male), ↑ kidney wt. (female), ↑ liver wt. (male/female) greater than or equal to 3400/3100 mg/kg-bw per day: ↑ kidney wt., ↑ liver wt. (male/female), ↑ testes wt. (male), ↑ abnormal sperm, ↓ sperm motility, epididymal wt., ↓ bw (male), ↑↓ lymphocytes, leukocytes, mean corpuscular hemoglobin, mean cell volume, platelets (male/female), ↓ hemoglobin, erythrocytes, reticulocytes LOAEL = 1700 mg/kg-bw per day, based on hematological effects in female and renal effects in male rats |
Oral / NTP 1991 | B6C3F1 mice (10 per sex per group) | Exposure to 0, 1250, 2500, 5000, 10 000, 20 000 ppm (males) (intakes reported by authors: 0, 380, 611, 1353, 2258, 4858 mg/kg-bw per day) and 0, 2500, 5000, 10 000, 20 000, 50 000 ppm (females) (intakes reported by authors: 0, 892, 2007, 4156, 5945, 11 298 mg/kg-bw per day) of acetone in drinking water for 13 weeks | Males: No effects on survival, and no clinical signs of toxicity No significant changes in body weight or water consumption No significant changes in organ weights greater than 892 mg/kg-bw per day: ↓ water consumption (female) greater than 1353 mg/kg-bw per day: ↑ hemoglobin (male) 4858 mg/kg-bw per day: ↑ mean corpuscular hemoglobin (male) greater than 5945 mg/kg-bw per day: ↑ hemoglobin (female) 11 298 mg/kg-bw per day: ↑ liver wt., ↓ spleen wt., centrilobular hepatocellular hypertrophy, ↑ hematocrit (female) LOAEL = 11 298 mg/kg-bw per day, based on increased absolute liver weight coupled with liver histopathology in female mice |
Oral / Ladefoged et al. 1989 | Male Wistar rats (11 per group) | Exposure to 0%, 0.5% in drinking water for 6 weeks (0, 700 mg/kg-bw per day) |
No effect on nerve conduction velocity at weeks 3, 4, 5
No effect on balance time on rotorod |
Oral / Spencer et al. 1978 | Sprague-Dawley rats (3 per group; sex not reported) | Exposure to 0%, 0.5% in drinking water (for 8 weeks; 700 mg/kg-bw per day) or 1% in drinking water (for 4 weeks; 1400 mg/kg-bw per day) | No evidence of peripheral neuropathy No clinical signs of toxicity |
Oral / Sollman 1921 | Rats (3 in total) | Exposed to 2.5% (3500 mg/kg-bw per day) acetone in drinking water for 18 weeks | Decrease in food and water consumption and body weights Histopathology was not conducted |
Dermal / Rengstorff et al. 1972 | Guinea pigs (8 per group) | Dermal exposure to 0 or 0.5 mL acetone 5 days/week for 8 weeks | Cataracts in 2/8 treated animals and 0/8 controls |
Dermal / Rengstorff et al. 1976 | New Zealand White rabbits (8 per group) | 1 mL acetone on clipped back, 3 times/week, for 3 weeks; saline was used in the control group | No lens abnormalities were observed at end of exposure or after 6 months of follow-up |
Dermal / Taylor et al. 1993 | Albino guinea pigs, Hartley hairless (20 animals) | Topical exposure to 0.5 mL acetone for 5 days/week for 6 months | No cataracts observed |
Route of Entry / Reference | Species | Protocol | Results |
---|---|---|---|
Inhalation | Not available | Not available | Not available |
Oral | Not available | Not available | Not available |
Dermal / Barr-Nea and Wolman 1972 | ICR mice (sex and number per group not specified) | Dermal exposure to unspecified amounts of acetone for 5 or 7 months; untreated group included | 0/9 and 2/18 animals diagnosed with amyloid deposition after 5 and 7 months of exposure, respectively, but none in unspecified number of untreated animals Significant increase in amyloid deposition in the heart, liver, kidney, skin, pancreas and adrenals in 12/23 acetone-treated animals compared with 1/18 untreated animals |
Dermal / DePass et al. 1989 | Male C3H/HeJ mice (40 exposed) | Dermal exposure to approximately 670 mg/kg-bw (amount reported by authors: 25 µL of a 100% solution), 3 times/week for “their complete lifespan; average daily dose of 290 mg/kg-bw per day”; no untreated group included | No skin tumours noted Subcutaneous mesenchymal neoplasms (a fibrosarcoma and a lymphosarcoma) in two animals, ulcerative dermatitis in two animals, epidermal hyperplasia and hyperkeratosis in 2/40, 2/40, 1/40 and 1/40 animals, respectively |
Dermal / Ward et al. 1986 | Female SENCAR mice (30 per group) | Dermal exposure to 5300 mg/kg-bw (amount reported by authors: 0.2 mL) of acetone, 2 times/week for 92 weeks; average daily dose of 1520 mg/kg-bw per day; another group dermally exposed to 0.2 mL of formalin once, followed 4 weeks later by dermal exposure to similar dose of acetone (1520 mg/kg-bw per day) for 88 weeks; no untreated group included |
Authors reported that neoplastic and non-neoplastic lesions occurred with similar incidence, and survival was similar; therefore, results were combined for statistical analysis Only 50% survived past 96 weeks of age; causes of death included non-neoplastic and neoplastic lesions Glomerulonephritis and histiocytic sarcoma reported as the two major contributing causes of death Other effects not regarded as contributors to death: neoplastic lesions--lung tumours (adenomas and adenocarcinomas) and mammary gland tumours (primarily adenocarcinomas); non-neoplastic lesions--lymphoid and epithelial hyperplasia of the thymus, myeloid metaplasia and lymphoid hyperplasia of the spleen, lymphoid hyperplasia of the lymph nodes, cytomegaly and chronic cholangitis of the liver, amyloidosis of the nasal turbinates, cystic endometrial hyperplasia |
Route of Entry / Reference | Species | Protocol | Results |
---|---|---|---|
Inhalation / Mast et al. 1988 | Sprague-Dawley rats (pregnant) (26–29 per group) | Exposure to 0, 1045, 5200, 26 100 mg/m3 acetone vapour (concentrations reported by authors: 0, 440, 2200, 11 000 ppm) for 6 h/day, 7 days/week, for 14 days (days 6–19 of gestation) | No clinical signs of maternal toxicity
Statistically significant decrease in extragestational weight gain, uterine weight in the 26 100 mg/m3 group Fetal weights were statistically decreased at 26 100 mg/m3 At 26 100 mg/m3, the percentage of litters with resorptions (77% vs. 50%) and percentage of litters with at least one malformation (11.5% vs. 3.8%) were higher than control NTP concluded that acetone had not caused a teratogenic effect in rats LOAEC (maternal toxicity) = 26 100 mg/m3, based on significant decreases in body weight gain and uterine weight LOAEC (developmental toxicity) = 26 100 mg/m3, based on significant decrease in fetal weights, increased number of resorptions and increased malformations |
Inhalation / Mast et al. 1988 | CD-1 mice (pregnant) (28–31 per group) | Exposure to 0, 1045, 5200, 15 670 mg/m3 acetone vapour (concentrations reported by authors: 0, 440, 2200, 6600 ppm) for 6 h/day, 7 days/week, for 12 days (days 6–17 of gestation); high exposure was initially 11 000 ppm (26 100 mg/m3), but reduced after 1st day due to severe narcosis | No clinical signs of maternal toxicity, and no significant effect on maternal body weights, absolute and relative kidney weights, or uterine weights Significant increase in absolute and relative liver weights in pregnant mice at 15 670 mg/m3 Statistically significant decrease in fetal weights, increased incidence of litters with reduced sternebrae ossification, and a slight but statistically significant increase in the percentage incidence of late resorptions at 15 670 mg/m3 LOAEC (maternal toxicity) = 15 670 mg/m3based on increase in absolute and relative liver weights in pregnant mice LOAEC (developmental toxicity) = 15 670 mg/m3 based on decrease in fetal weights and increase in the percentage incidence of late resorptions and retarded ossification |
Oral / Larsen et al. 1991 | Male Møllegard/ Wistar rats (10 per group) | Exposure to 0 or 800 mg/kg-bw (0% or 0.5% in drinking water) for 6 weeks, and then mated with untreated females; other groups were exposed for 6 weeks, held for 10 weeks exposure-free, and then mated to untreated females | No changes were observed in reproductive parameters or testicular measurements (number of matings, pregnancies, fetuses, testicular weight and testicular histopathology) |
Oral / Dalgaard et al. 2000 | Male Wistar rats (10 per group) | 0 or 700 mg/kg-bw per day (0% or 0.5% acetone in drinking water) for 9 weeks; or 0 or 1400 mg/kg-bw per day (0% or 1% acetone in drinking water) for 4 weeks; and then mated with untreated females | No effect on body weight, male fertility, reproductive organ weights or testes histopathology Acetone-exposed rats had reduced forelimb and hindlimb grip strength and blood glucose levels (Other reproductive toxicity studies: American Biogenics Corporation 1986, NTP 1991; listed under short-term and subchronic toxicity studies) |
Route of Entry / Reference | Species | Protocol | Results |
---|---|---|---|
Oral | See subchronic section | See subchronic section | See subchronic section |
Dermal / Singh et al. 1996 | Female SSIN mice (6 per group) | Dermal exposure to 0; 187 or 380; 375 or 750; 750 or 1500; 1125 or 2250 mg/kg-bw per day--reflecting dosing once or twice a week (concentrations reported by authors: 0, 50, 100, 200 or 300 µL) acetone once or twice weekly for 2 or 4 weeks | No changes in relative percentages of B cells, T cells or ratio of CD4+ to CD8+ T cells Statistically significant suppression of SRBC antibody response at 2250 mg/kg-bw per day; responses at other doses were reported to be schedule dependent Changes in plaque numbers in SRBC assay not accompanied by changes in splenic cellularity No effect on the mixed lymphocyte response |
Route of Entry / Reference | Species | Protocol | Results |
---|---|---|---|
Inhalation / Goldberg et al. 1964 | Female CFE rats (8–10 per group) | Exposure to 0, 3000, 6000, 12 000 or 16 000 ppm (calculated for this report to be 0, 7120, 14 240, 28 480 and 37 975 mg/m3) for 4 h/day, 5 days/week, for 10 total exposures | No effect on growth rate Concentration-dependent increase in inhibition of avoidance response: 0%, 38%, 50% and 62% at 7120, 14 240, 28 480 and 37 975 mg/m3, respectively, after single exposure; this incidence decreased with repeated exposure
Ataxia at exposure to 28 480 or 37 975 mg/m3 after single exposure LOAEC = 14 240 mg/m3, based on increase in inhibition of avoidance response |
Inhalation / Christoph et al. 2003 | Male Crl:CD BR rats (10 per group) | Exposure to 0, 1000, 2000 or 4000 ppm acetone (0, 2400, 4800 or 9500 mg/m3) for 6 h/day, 5 days/week, for 13 weeks; exposures preceded by 9 weeks of operant training | No clinical signs at end of exposure or effect on response to auditory alerting stimulus, fixed ratio response rate, fixed interval response rate or fixed interval index of curvature NOAEC = 9500 mg/m3 (highest concentration tested) |
Inhalation / De Ceaurriz et al. 1984 | Male Swiss OF1 mice (10 per group) | Exposure to 4827, 6129, 6789, 7176 mg/m3(concentrations reported by authors: 2032, 2580, 2858 or 3021 ppm) for 4 h | Statistically significant decreases in mobility time at 6129 mg/m3 and above, but not at 4827 mg/m3, in the behavioural despair swimming test ID50 (concentration estimated to cause a 50% decrease in the duration of immobility) = 6650 mg/m3 LOAEC = 6129 mg/m3 for 4 h |
Inhalation / Bruckner and Peterson 1981a | Male ARS/Sprague-Dawley rats (5 per group) | Exposure to 29 900, 45 100, 60 100, 120 200 mg/m3(concentrations reported by authors: 0, 12 500, 19 000, 25 300 or 50 600 ppm) for up to 3 h; the methods section noted control groups, but no data on the controls were reported | Concentration-related increase in depth of CNS depression and increase in rate of depression, based on five tests of unconditioned performance and reflexes (wire manoeuvre, visual placing, grip strength, tail pinch, righting reflex) 120 200 mg/m3 was lethal within 2 h LOAEC = 45 100 mg/m3 for 1 h |
Inhalation / Glowa and Dews 1987 | Mice (strain and number not available in secondary sources) | Exposure to six nominal concentrations ranging from 240 to 133 000 mg/m3 (concentrations reported by secondary sources: 100–56 000 ppm) for 1 day | No effect on the correct response rate at acetone concentrations less than 2380 mg/m3; the highest concentration tested (133 000 mg/m3) completely eliminated the response EC50 = 25 000 mg/m3 for acetone-induced changes in schedule-controlled operant behavior (Morgott 2001) NOAEC = 2380 mg/m3, with a LOAEC of 7130 mg/m3, based on a 10% decreased response to food presentation in a fixed interval operant behavioural test (ATSDR 1994) |
Inhalation / Geller et al. 1979a | Male juvenile baboon (n = 4) | Exposed continuously to 500 ppm (1206 mg/m3) for 7 days | Neurobehavioural effect (increased response time on match-to-sample operant behavioural test) in all four animals, and possible increased alerting response in two of four animals |
Inhalation / Mashbitz et al. 1936 | White mice (sex and number per exposure group not reported) | Exposure to 40 000, 60 000, 80 000, 100 000, 120 000, 133 000 or 200 000 mg/m3 acetone for durations up to 4 h | Time to narcosis at 40 000, 60 000, 80 000, 100 000, 120 000, 133 000 and 200 000 mg/m3 was 158, 92, 59, 38, 33, 38 and 34 min, respectively At greater than or equal to 100 000 mg/m3, drowsiness preceded period of excitement, with impaired coordination at 25–28 min, followed by deep narcosis at 33–38 min. Effects were accompanied by frequent rhythmical clonic movement of the hind legs and abdominal muscles. A similar pattern of effects was seen at lower concentrations, with a longer time to effect. Mice remained in deep narcosis for 38–100 min post-exposure. |
Inhalation / Haggard et al. 1944 | Rats (no strain or sex reported) | Exposure to 5000, 10 000, 25 000, 50 000, 100 000, 200 000 or 300 000 mg/m3 acetone for 45 min to 8 h | No intoxication (slight incoordination) less than or equal to 10 000 mg/m3 for durations up to 8 h, but intoxication observed at 25 000, 50 000, 100 000, 200 000 and 300 000 mg/m3 at durations of 100–250, 40–80, 15–35, 10–15 and 5–7 min of exposure, respectively No loss of righting reflex at less than or equal to 10 000 mg/m3 for up to 8 h or at 25 000 mg/m3 for up to 6 h, but loss observed at 50 000, 100 000, 200 000 and 300 000 mg/m3 at durations of 130–160, 50–57, 22–25 and 10–15 min of exposure, respectively No loss of corneal reflex at less than or equal to 10 000 mg/m3 for up to 8 h or at 25 000 and 50 000 mg/m3 for up to 6 h, but was observed at 100 000, 200 000 and 300 000 mg/m3 at durations of 105–155, 45–50 and 22–25 min of exposure, respectively Slight incoordination at blood concentrations of approximately 1000–2000 mg/L, loss of righting reflex at about 3000 mg/L, loss of corneal reflex at 5000 mg/L and respiratory failure at 9100–9300 mg/L |
Oral / Ladefoged et al. 1989 | Male Wistar rats (11 per group) | Exposure to 0%, 0.5% acetone (0, 700 mg/kg-bw per day) in drinking water for 6 weeks | No effect on nerve conduction velocity at weeks 3, 4, 5
No effect on balance time on rotarod |
Assay | Indicator system | Highest concentration tested | Metabolic activation | Results (with/ without S9) | Reference |
---|---|---|---|---|---|
Reverse mutation (Ames assay) | S. typhimurium TA98, TA100, TA1535 & TA1537 | 10 mg/plate | Rat & hamster liver S9 | −/− | Zeiger et al. 1992 |
Reverse mutation (Ames assay) | S. typhimurium TA98, TA100, TA1535, TA1537 & TA1538 | 73 mg/plate | None | NA/− | De Flora et al. 1984 |
Reverse mutation (Ames assay) | S. typhimurium TA92, TA94, TA98, TA100, TA1535 & TA1537 | 10 mg/plate | Rat liver S9 | −/NA | Ishidate et al. 1984 |
Lambda prophage WP2s(λ) induction (Microscreen assay) | Escherichia coli TH-008 | 10% (v/v) | Rat liver S9 | −/− | DeMarini et al. 1991 |
Lambda prophage WP2s(λ) induction (Microscreen assay) | E. coli SR714 | 10% (v/v) | Rat liver S9 | −/− | Rossman et al. 1991 |
β-Galactosidase activation (SOS chromotest) | E. coli PQ37 | 100 mM | Rat liver S9 | −/− | Von der Hude et al. 1988 |
Colitis phage DNA transfection assay | E. coli CR63 | 0.1 mL | Rat liver S9 | −/NA | Vasavada and Padayatty 1981 |
DNA binding assay | E. coli Q13 | 0.05% (v/v) | Rat liver S9 | −/− | Kubinski et al. 1981 |
Recombination assay | Bacillus subtilis H-17 & M-45 | 10 mg/well | Rat liver S9 | −/− | McCarroll et al. 1981 |
β-Galactosidase activation (SOS chromotest) | S. typhimurium TA1535/pSK1002 | 33 mg/mL | Rat liver S9 | −/− | Nakamura et al. 1987 |
Assay | Indicator system | Highest concentration tested | Metabolic activation | Results (with/without S9) | Reference |
---|---|---|---|---|---|
Chromosomal malsegregation | Saccharomyces cerevisiae D61.M | 7.8% (v/v) | None | NA/+ | Zimmermann et al. 1985 |
Point mutation and mitotic recombination | S. cerevisiae D61.M | 7.8% (v/v) | None | NA/− | Zimmermann et al. 1985 |
Chromosomal malsegregation | S. cerevisiae D61.M | 50 mg/mL | None | NA/± | Whittaker et al. 1989 |
Chromosomal malsegregation | S. cerevisiae D61.M | 8% (v/v) | None | NA/± | Albertini 1991 |
Reverse mutation | S. cerevisiae D7 | 10% (v/v) | None | NA/± | Yadav et al. 1982 |
Forward mutation | Schizosaccharomyces pombe P1 | 3.7% (v/v) | Mouse liver S10 | −/NA | Abbondandolo et al. 1980 |
Forward mutation | S. cerevisiae D4 | 5% (v/v) | Rat liver S9 | −/NA | Barale et al. 1983 |
Cell transformation assay | Syrian hamster embryo cells | 135 μg/m3 | None | NA/− | Hatch et al. 1983 |
Cell transformation assay | Syrian hamster embryo cells | 8% (v/v) | None | NA/− | Pienta 1980 |
Cell transformation assay | Rat embryo cells | 100 μg/mL | None | NA/− | Freeman et al. 1973 |
Cell transformation assay | Rat embryo cells | 0.1% (v/v) | Rat liver S9 | −/− | Mishra et al. 1978 |
Transformation assay | Asynchronous mouse embryo fibroblasts | 0.5% (v/v) | None | NA/− | Peterson et al. 1981 |
Cell transformation assay | Mouse embryo fibroblasts | 0.5% (v/v) | None | NA/− | Lillehaug and Djurhuus 1982 |
Cell transformation assay | Mouse prostate fibroblasts | 0.5% (v/v) | None | NA/− | Gehly and Heidelberger 1982 |
SCE | Chinese hamster lung fibroblasts | 100 mM | Rat liver S9 | −/− | von der Hude et al. 1987 |
Chromosomal aberration | Chinese hamster fibroblasts | 5% (v/v) | None | NA/+ | Ishidate et al. 1984 |
SCE | Chinese hamster lung fibroblasts | 8.6 mM | None | NA/− | Latt et al. 1981 |
Chromosomal aberration & SCE | Chinese hamster ovary cells | 1 mg/mL | Rat liver S9 | −/− | Tates and Kriek 1981 |
Chromosomal aberration & SCE | Chinese hamster ovary cells | 5 mg/mL | Rat liver S9 | −/− | Loveday et al. 1990 |
Chromosomal aberration & SCE | Human lymphocytesFootnote Appendix D Table D2-2[b] | 20.9 mM | None | NA/− | Norppa et al. 1981 |
Mouse lymphoma mutation assay | L5178Y mouse lymphoma cells | 470 mM | None | NA/− | Amacher et al. 1980 |
Mouse lymphoma mutation assay | L5178Y mouse lymphoma cells | 1% (v/v) | Rat liver S9 | −/NA | McGregor et al. 1988 |
Mouse lymphoma mutation assay | S49 mouse lymphoma cells | 140 mM | Rat lvi | −/NA | Friedrich and Nass 1983 |
Reverse mutation ouabain resistance | Chinese hamster lung fibroblasts | 0.2% (v/v) | None | NA/− | Lankas 1979 |
Forward mutation thioguanine resistance | Chinese hamster lung fibroblasts | 0.5% (v/v) | Rat liver S9 | −/NAFootnote Appendix D Table D2-2[a] | Cheng et al. 1981 |
Micronucleus test | Human lymphocytes[b] | 5 mM | Rat liver S9 | − | Zarani et al. 1999 |
Unscheduled DNA synthesis | Bovine lymphocytes | 0.4 mg/mL | None | − | Targowski and Klucinski 1983 |
Unscheduled DNA synthesis | Human skin cells[b] | 10% (v/v) | None | − | Lake et al. 1978 |
Metabolic cooperation assay | Chinese hamster lung fibroblasts | 5% (v/v) | None | + | Chen et al. 1984 |
Alkaline elution assay | Rat hepatocytes | 1% (v/v) | None | − | Sina et al. 1983 |
Two-stage cell transformation assay | Mouse 3T3 cells | 0.5% (v/v) | None | − | Sakai and Sato 1989 |
Assay | Indicator system | Highest concentration tested | Metabolic activation | Results (with/without S9) | Reference |
---|---|---|---|---|---|
Micronucleus test | Chinese hamster bone marrow cells | 865 mg/kg-bw | NA | − | Basler 1986 |
Micronucleus test | Mouse bone marrow | 5000–20 000 ppm in drinking water (1000–4000 mg/kg-bw per day)Footnote Appendix D Table D2-3 [a] for 13 weeks | NA | − | Unpublished study cited in NTP 1991 |
Host-mediated assay | Hamster fetal cells | 2300 mg/kg-bw | NA | − | Quarles et al. 1979 |
Appendix E: Summary of Human Effects Data for Acetone
Subjects | Protocol | Results | Reference |
---|---|---|---|
31 acetone-exposed workers from a cellulose acetate production facility employed for 1.5–33 years and age- and sex-matched controls unexposed to acetone except for infrequent nail polish remover use | Volunteers were presented with pairs of bottles with a blank solution or various dilutions of acetone, inserted the nose-piece in each nostril, sniffed and tried to identify the bottle containing acetone | Olfactory threshold was 855 ppm (2031 mg/m3) in exposed workers and 41 ppm (97 mg/m3) in unexposed controls Lateralization threshold (to indicate sensory irritation) was 36 669 ppm (87 106 mg/m3) in exposed workers and 15 758 ppm (37 433 mg/m3) in unexposed controls |
Wysocki et al. 1997 |
8 subjects (4 anosmics, 4 normosmics) | Volunteers were presented with pairs of bottles with a pop-up spout and squeezed the bottle to sniff varying dilutions of acetone or a blank into one nostril | Odour threshold in normosmics was approximately 10 000 ppm (23 755 mg/m3). Nasal pungency threshold was 100 000 ppm (237 500 mg/m3) in anosmics. | Cometto-Muñiz and Cain 1993 |
25 males | Exposed to acetone vapour 240, 590, 1190 and 2400 mg/m3 (concentrations reported by authors: 100, 250, 500 and 1000 ppm) for 3 h in morning and 3 h in afternoon for 1 day or exposed to 590 or 1190 mg/m3 (250 or 500 ppm) for 6 h/day (with 45 min break) for 6 days | greater than or equal to 240 mg/m3: very mild nose, eye and throat irritation after 1 day of exposure; effects were inconsistent among exposed subjects greater than or equal to 1190 mg/m3: irritating to nose, eyes, throat and trachea; very slight irritation at lower concentrations; statistically significant increase in white blood cell counts and decrease in phagocytic activity of neutrophils at 1190 mg/m3 after single day exposure of 6 h (2×3h in same day) or repeated 6 h exposure for 6 days, possibly reflecting inflammatory response 1190 mg/m3 was considered the most appropriate LOEC |
Matsushita et al. 1969a, b |
Average of 10 people per group of both sexes | Exposed to acetone vapour 475, 713 and 1190 mg/m3(concentrations reported by authors: 200, 300 or 500 ppm) for 3–5 min | Symptoms of eye and throat irritation were reported by the volunteers at concentrations greater than or equal to 713 mg/m3 | Nelson et al. 1943 |
10 males | Exposed to acetone vapour 551 mg/m3 (concentration reported by authors: 231 ppm) for 2 h | No subjective symptoms of eye, nose, throat or airway irritation and no subjective CNS effects, based on ratings on an analogue scale; acetone smell was detected | Ernstgård et al. 1999 |
9 males | Exposed to acetone vapour 240 and 1190 mg/m3(concentrations reported by authors: 100 and 500 ppm) for 2 or 4 h | No effect on clinical chemistry or hematology; no subjective symptoms | DiVincenzo et al. 1973 |
Males or females (2–4 per group) | Exposure to 0, 475, 2370 and 2970 mg/m3(concentrations reported by authors: 0, 200, 1000 and 1250 ppm) for 3 or 7.5 h/day for up to 4 days | No significant neurological abnormalities Visual evoked response changes at 2970 mg/m3following repeated exposures Premature menstruation in 3 of 4 women at 2370 mg/m3for 7.5 h/day for 4 days (early by 1 week or more), but not at same concentration for 3 h/day for 4 days Pulmonary function testing showed no abnormalities at any concentration
No effect on complete blood count or clinical chemistry Eye and throat irritation was present at all concentrations, but complaints were inconsistent from one week to the other; however, throat irritation at an incidence greater than controls was reported in subjects exposed to 2370 mg/m3 for 3 or 7.5 h |
Stewart et al. 1975 |
32 subjects, sex not specified | Exposure to 2375 mg/m3 (concentration reported by author: 1000 ppm) for 4 or 8 h | Throat irritation at both durations No increased reporting of subjective symptoms of tiredness, tension, complaints or annoyance |
Seeber et al. 1992 |
11 male and 11 female volunteers | Exposure to 600 mg/m3 (concentration reported by authors: 250 ppm) for 4 h | Increase in response time and percentage of incorrect responses in dual auditory tone discrimination compensatory tracking test Profile of Mood States test showed increase in anger-hostility score in males |
Dick et al. 1989 |
Subjects | Protocol | Results | Reference |
---|---|---|---|
776 female university employees in laboratory work | Exposure was evaluated through a questionnaire on type of work and substances handled, but was not quantified. Pregnancies and outcome of pregnancies were investigated through questionnaire, and information was verified in medical records. | Overall miscarriage rate was 11.1%. When divided by main occupation during pregnancy, miscarriage rates were 9.9%, 7.7% and 7.2% for laboratory work, laboratory study and work at home, respectively. Outcome of pregnancy related to solvent exposure in the first trimester indicates that miscarriage was higher among women not engaged in laboratory work (11.5%) compared with those working with solvent (10.6%). No dose–response trend was observed when comparing frequency of work with solvent with frequency of miscarriage. No effects of solvent exposure were apparent on incidence of malformation. Birth weight was not correlated with exposure to solvent. Miscarriage rate was 12.5% among women exposed to acetone during the first trimester. |
Axelsson et al. 1984 |
Retrospective case–referent study of female laboratory workers Spontaneous abortion study included 535 women (206 cases and 329 referents) Malformation study included 141 women (36 cases and 105 referents) Birth weight analysis included 500 referent women |
Solvent use was self- reported, with frequency of use per week specified on an individual chemical basis. An exposure index was calculated for each individual. | Odds ratio of spontaneous abortion for acetone was 1.2 (95% CI 0.7–1.8) in women exposed 1–2 days/week and 1.3 (95% CI 0.7–2.4) in women exposed 3–5 days/week. Odd ratios for congenital malformations were not increased for any type of chemical exposure. Acetone was not assessed individually. Birth weight was negatively associated with mothers employed in a laboratory (133 g decrease). Acetone was not assessed individually. |
Taskinen et al. 1994 |
25 males working in reinforced plastic production plant matched to male patients from a fertility clinic | Average breathing zone acetone concentrations in workers were 224, 385 and 164 mg/m3 for 10, 15 and 28 weeks, respectively, before semen collection. Semen was collected within 3 weeks of closure of the plant. Workers were also exposed to high concentrations (294–552 mg/m3) of styrene. | No effects on serum concentration of follicle stimulating and luteinizing hormones or on sperm concentration. Increased live sperm (80% vs. 68% in controls). Decreased percentage of immobile sperm (30% vs. 40% in controls). Decreased percentage of normal sperm morphology (47% vs. 60% in controls). |
Jelnes 1988 |
Cross-sectional study 110 exposed males (ages 18.7–56.8 years, mean 37.6 years) 67 unexposed males (ages 20.7 –57.5 years, mean 41.9 years) |
Exposure to concentrations ranging from 5 to 1212 ppm (12–2888 mg/m3); mean TWA exposure over the course of the workday was 361 ppm (858 mg/m3) | Exposure-related increase in 1) eye irritation, tearing and acetone odour at the end of the workshift and 2) heavy, vague or faint feeling in the head, nausea and loss of weight. No changes in hematological parameters, serum biochemistry or phagocytic activity of peripheral neutrophils. No changes in Manifest Anxiety Scale scores, Self-rating Depression Scale scores or R-R interval variation on ECG |
Satoh et al. 1996 |
Retrospective mortality study of 948 subjects; additional evaluation on 341 subjects: 188 men, 153 women | TWA acetone concentration was 1000 ppm (2400 mg/m3) 13.9% of the employees employed for less than 1 year and 55.1% employed for more than 5 years in a cellulose fibre plant; acetone used as only solvent |
Mortality study found no significant excess risk of death from any cause compared with the general population in the USA All hematological and clinical blood chemistry parameters were within normal limits Study did not include control group. Study conducted to use the acetone-exposed group as reference group to examine the hematopoietic effect of methylene chloride during co-exposure of methylene chloride, acetone and methanol. |
Ott et al. 1983a, b, c |
120 volunteers (30 per exposed group, 60 controls) | Exposure to TWA acetone concentrations ranging from 948 to 1048 ppm in high-exposure group and from 549 to 653 ppm in low-exposure group (2300–2500 mg/m3 and 1300–1600 mg/m3, respectively). Exposed volunteers employed for at least 5 years at an acetate fibre manufacturing plant. Controls were never exposed to acetone. | Reported average urinary acetone levels were 93 mg/L and 62 mg/L for high- and low-exposure groups, respectively. No statistically significant differences in hematological and clinical parameters noted, after adjusting for confounding factors such as smoking, alcohol consumption, age and past medical histories (liver and kidney damage). |
Grampella et al. (1987) |
157 (71 occupationally exposed workers, 86 matched controls) | Exposure to TWA acetone concentrations of 988–2114 mg/m3 over an 8 h shift. Workers employed for an average length of 14 years. | Compared with controls, increased prevalence of neurotoxic syndrome (mood disorders, irritability, memory difficulties, sleep disturbances, headache, and numbness in hands and feet) and irritation syndrome (upper respiratory tract irritation), and significant differences in motor nerve conduction velocity in median, ulna and peroneal nerves Questions have been raised about the study methods (Graham 2000) |
Mitran et al. 1997 |
800 workers | Exposure to acetone concentrations ranging from 1425 to 5100 mg/m3. Length of exposure not reported. | Sensory irritation and systemic toxicity (hematology and urinalysis) evaluated No systemic toxicity or adverse health effects noted NOEC for human sensory irritation was 3560 mg/m3 |
Oglesby et al. 1949 |
410 volunteers (150 occupationally exposed employees, 260 non-exposed controls) | Exposure to an average 8 h TWA concentration of 900 ppm (2140 mg/m3). Length of exposure not reported. | ALT, AST, total bilirubin and hematocrit were not significantly different between exposed and control groups No difference in response rates for symptoms such as loss of memory, headache or dizziness between the exposed and control groups |
Soden 1993 |
9 workers | Exposure for the 1st and 2nd years of study to short-term (about 2–3 h) acetone concentrations of 2300 ppm (5500 mg/m3) and 300 ppm (710 mg/m3) in the breathing zone at two different work stations. Acetone concentration in the general air was 110 ppm (260 mg/m3). | Exposure caused transient and intermittent eye, throat and nasal irritation, headaches and lightheadedness in individuals only when concentration exceeded 1000 ppm (2400 mg/m3) CNS effects attributable to acetone exposure not observed |
Raleigh and McGee 1972 |