Table 4: Final Human Health State of the Science Report on Lead

Table 4. Lead loadings in household dust in Canadian residential homes
Year Location n Sample location Median/
geometric mean concentration
% < LODTable 4 footnote a Concentration range Reference

- not reported

Table 4 footnotes

Table 4 footnote a

Limit of detection.

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Table 4 footnote b

The vacuum bags or contents of a canister vacuum used by the participant were obtained and submitted for analysis.

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Table 4 footnote c

Samples collected in 222 Ontario homes during January–March 2008: Barrie (57 homes), Greater Sudbury (86 homes) and Thunder Bay (79 homes).

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Table 4 footnote d

Samples collected between September 2009 and March 2010.

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Table 4 footnote e

LOD is reported to be 0.019 µg.

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Table 4 footnote f

LOD is reported to be 0.125 µg.

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Table 4 footnote g

From homes built prior to 1950. Report indicates that 196 households participated in environmental sampling; only a small number were built after 1950.

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Vacuum samples: bioaccessible lead (mg/kg)
2007-2010 Canada 1025 Whole house, technician collected 63/74 0 7.9-3916 Rasmussen et al. 2011
2010- 2011 4 boroughs of Montréal, QC 201 Not stated, participant collectedTable 4 footnote b 93/117 0 2.9-6898 Gauvin et al. 2011
Wipe samples (µg/ft2)
2008 OntarioTable 4 footnote c 208 Entry 0.52/- 22 <0.086-58 McDonald et al. 2010
218 Kitchen 0.095/- 49 <0.086-15
114 Living room/family room <LOD/- 49 <0.086-45
93 Adult bedroom 0.30/- 43 <0.086-39
50 Child bedroom <LOD/- 60 <0.086-67
23 Playroom 0.32/- 26 <0.086-20
2010-2011 4 boroughs of Montréal, QCTable 4 footnote d 305 Floor 0.70/0.85 - 0.08-90.9 INSPQ 2011
263 Child bedroom window sill 7.15/7.14 - < LODTable 4 footnote e-1216
2010 St. John's, NL 194 Floor 0.6/0.61 - 0.06-407 Bell et al. 2011
184 Window sill 1.35/1.1 - <LODTable 4 footnote f-1236
180 Window trough 17.8/17.8 - <LODTable 4 footnote e-6101
2008-2009 (North) Hamilton, ON - Living room floor - - <1-109Table 4 footnote g Richardson et al. 2011
1999-2004 United States 2065 All floor -/0.52 - - Gaitens et al. 2009
1618 Window sill -/7.64
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