Aquatic Life Reference Values (ALRVs)
Health Canada's Pest Management Regulatory Agency (PMRA) has established surface water Aquatic Life Reference Values (ALRVs) for pesticides currently registered for use in Canada.
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What are ALRVs
The PMRA has established Aquatic Life Reference Values (ALRVs) for over 280 pesticides. ALRVs are pesticide concentrations in surface water below which risks to aquatic life are not expected. PMRA's ALRVs are thresholds for individual pesticides, based on toxicity values for aquatic species, with the goal of protecting the environment. Other federal and provincial departments may also develop thresholds or use other reference values to protect aquatic life. These are developed with different risk management goals in mind using varying methods. As a result, these thresholds may not be equivalent to PMRA's ALRVs.
The PMRA follows internationally accepted methods to assess both long-term (chronic) and short-term (acute) risks to fish and invertebrates. The risk to aquatic vascular and non-vascular plants is also assessed using internationally accepted methods. For a given pesticide, there are up to six ALRVs, depending on the organism group and exposure duration, that form the basis of a pesticide risk assessment:
- acute fish and chronic fish
- acute invertebrates and chronic invertebrates
- aquatic vascular plants
- aquatic non-vascular plants (algae)
These values are found in the regulatory decision documents published by PMRA for every pesticide evaluation or re-evaluation; new or updated ALRVs are established upon publication of a final decision. The process for establishing PMRA's ALRVs is similar to that used by the United States Environmental Protection Agency (USEPA) to establish the USEPA Aquatic Life Benchmarks (USEPA ALBs). If PMRA does not have an ALRV, the USEPA ALB is used. Note that there will be a delay between the publication of PMRA final decisions or USEPA ALBs and updates to the ALRV table below.
Short-term (acute) ALRVs
- These are indicative of the possible impacts to the aquatic environment that can come from short-term exposure to high concentrations of a pesticide. Aquatic organisms exposed to concentrations of the pesticide at or below the acute ALRV are unlikely to experience severe adverse effects such as mortality.
Long-term (chronic) ALRVs
- These are indicative of the possible impacts to the aquatic environment that can come from long-term exposure to pesticide concentrations. Aquatic organisms are unlikely to experience adverse effects when surface water concentrations of a pesticide are at or below the chronic ALRV. Small exceedances of the chronic value for short periods of time are not expected to cause harm.
How ALRVs are used
Comparing the measured concentration of a pesticide in water with an ALRV can be helpful in interpreting monitoring data. It can also provide useful information for identifying and prioritizing sites and/or pesticides that may require further investigation.
If concentrations of pesticides in water are below the ALRV, they are not expected to pose risks to freshwater aquatic life. If the concentrations of pesticides in water are equal to or higher than the ALRV, risks to aquatic life may occur, and additional steps may be taken.
Additional actions that PMRA may take when ALRVs are exceeded could include:
- examining information about the use of the pesticide and the current risk management measures in place
- collecting additional site-specific data to further identify the risk
- conducting a re-evaluation or special review that could result in new risk mitigation measures
ALRV data
The table below lists ALRVs for pesticides that are registered for use in Canada; ALRVs for pesticides that have been cancelled or discontinued are included in the table up to five years after the last date of permissible use. These values are updated annually based on the most recent PMRA decision documents.
The table was updated May 13, 2024. New and updated ALRVs are shown in bold text. A summary of these changes is provided in the Record of Data Changes.
The table and footnotes can also be viewed through the downloadable CSV files.
| ALRV chemical name | ALRV year updated Footnote 1 | ALRV Reference Footnote 2 | Representative CAS Number Footnote 3 | Registered CAS Number(s) Footnote 3 | Acute Fish ALRV (µɡ/L) Footnote 4 | Chronic Fish ALRV (µɡ/L) Footnote 5 | Acute invertebrate ALRV (µɡ/L) Footnote 6 | Chronic invertebrate ALRV (µɡ /L) Footnote 7 | Non-vascular plants ALRV (µɡ/L) Footnote 8 | Vascular plants ALRV (µɡ/L) Footnote 9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1-bromo-3-chloro-5,5-dimethylhydantoin and related hydantoins | 2021 | EPA Benchmark | 16079-88-2 | 16079-88-2 | 200 | 235 | ||||
| 2,4-D | 2008 | PACR2007-06 | 94-75-7 | 94-75-7; 1048373-72-3; 1929-73-3; 1928-43-4 | 47 | 120 | > 100 | 15 | 94 | 70 |
| 2,4-DB | 2019 | PRVD2018-08 | 94-82-6 | 94-82-6; 7720-36-7 | 3240 | 1660 | 64900 | 1500 | 550 | 1300 |
| 2-methyl-4-isothiazolin-3-one | 2021 | EPA Benchmark | 2682-20-4 | 2682-20-4 | 35 | 20 | 90 | 100 | 23 | |
| 4,5-dichloro-2-N-octyl-3(2H)-isothiazolone | 2021 | EPA Benchmark | 64359-81-5 | 64359-81-5 | 0.7 | 0.42 | 2.6 | 0.4 | 18 | 166 |
| 4-nitro-3-(trifluoromethyl)phenol or sodium salt | 2019 | EPA Benchmark | 88-30-2 | 88-30-2 | 300 | 1790 | 1900 | 1200 | > 9770 | |
| Abamectin | 2014 | EPA Benchmark | 71751-41-2 | 71751-41-2 | 1.6 | 0.52 | 0.17 | > 100000 | 3900 | |
| Acephate | 2020 | PRVD2019-04; PRVD2016-01 | 30560-19-1 | 30560-19-1 | 11000 | 100000 | 650 | 150 | 24000 | |
| Acequinocyl | 2007 | ERC2007-10 | 57960-19-7 | 57960-19-7 | > 110 | 1100 | 2.55 | 0.98 | > 34300 | > 11500 |
| Acetamiprid | 2010 | PRD2010-02 | 135410-20-7 | 135410-20-7 | < 11800 | 19200 | 12 | 5000 | 1100 | 1000 |
| Acibenzolar-S-methyl | 2011 | PRD2010-19 | 135158-54-2 | 135158-54-2 | 88 | 26 | 1450 | 48 | 1655 | 156 |
| Acifluorfen | 2016 | EPA Benchmark | 62476-59-9 | 62476-59-9 | 8500 | < 3400 | 14050 | > 355 | 378 | |
| Acrolein | 2023 | EPA Benchmark | 107-02-8 | 107-02-8 | 3.5 | 11.4 | < 15.5 | 7.1 | 28 | 72 |
| Afidopyropen | 2018 | PRD2018-15 | 915972-17-7 | 915972-17-7 | 0.96 | 297 | 45 | 0.123 | 157 | 4370 |
| Ametoctradin | 2012 | PRD2011-25 | 865318-97-4 | 865318-97-4 | > 6.46 | 48 | > 77.5 | 242 | 3.9 | 66 |
| Aminocyclopyrachlor | 2014 | PRD2014-08 | 858956-08-8 | 858956-08-8 | > 120000 | 11000 | > 19850 | 4900 | > 3260 | 42350 |
| Aminopyralid | 2007 | REG2007-01 | 150114-71-9 | 150114-71-9 | 100000 | 1360 | 98600 | 33000 | 6000 | 44000 |
| Amitrole | 2014 | PRVD2012-01 | 61-82-5 | 61-82-5 | > 100000 | 100000 | 9000 | 200 | 1150 | 1250 |
| Atrazine | 2016 | EPA Benchmark | 1912-24-9 | 1912-24-9 | 2650 | 5 | 360 | 60 | < 1 | 4.6 |
| Azamethiphos | 2017 | PRD2016-25 | 35575-96-1 | 35575-96-1 | 20 | 500 | ||||
| Azoxystrobin | 2007 | REG2007-02 | 131860-33-8 | 131860-33-8 | 68 | 147 | 126 | 44 | 20 | 800 |
| Bensulide | 2016 | EPA Benchmark | 741-58-2 | 741-58-2 | 550 | 169 | 290 | 11 | 780 | 140 |
| Bentazon | 2016 | EPA Benchmark | 25057-89-0 | 25057-89-0; 50723-80-3 | > 95000 | 9830 | 31150 | 101200 | 4500 | 5350 |
| Benzovindiflupyr | 2015 | PRD2015-07 | 1072957-71-1 | 1072957-71-1 | 0.35 | 0.95 | 42.5 | 5.6 | > 445 | > 440 |
| Beta-cyfluthrin | 2021 | EPA Benchmark | 68359-37-5 | 68359-37-5 | 0.034 | 0.0042 | 0.145 | 0.003 | ||
| Bicyclopyrone | 2015 | PRD2015-02 | 352010-68-5 | 352010-68-5 | > 9340 | 10000 | > 46650 | 103700 | 1200 | 6.5 |
| Bifenazate | 2006 | REG2006-01 | 149877-41-8 | 149877-41-8 | 160 | 50 | 150 | 252 | 3820 | |
| Bifenthrin | 2017 | PRD2017-11 | 82657-04-3 | 82657-04-3 | 0.078 | 0.04 | 0.009 | 0.0013 | > 3150 | > 330 |
| Bispyribac-sodium | 2015 | EPA Benchmark | 125401-92-5 | 125401-92-5 | > 51000 | 9200 | > 49600 | 250 | 12 | |
| Bixafen | 2019 | PRD2019-04 | 581809-46-3 | 581809-46-3 | 7.4 | 4.6 | 550 | 15.6 | 34.3 | > 205 |
| Boric acid | 2023 | EPA Benchmark | 10043-35-3 | 10043-35-3 | 510500 | 42000 | 66500 | 10000 | 81300 | 162600 |
| Boscalid | 2009 | REG2004-02 | 188425-85-6 | 188425-85-6 | 1900 | 140 | 1600 | 1300 | 140 | 500 |
| Broflanilide | 2020 | PRD2020-06 | 1207727-04-5 | 1207727-04-5 | 25.1 | 51 | > 166 | 5.93 | > 200 | > 317 |
| Bromacil | EPA Benchmark | 314-40-9 | 314-40-9 | 18000 | 3000 | 60500 | 8200 | 6.8 | 45 | |
| Bromoxynil | 2016 | EPA Benchmark | 1689-99-2 | 56634-95-8;1689-99-2 | 14.5 | 18 | 5.5 | 2.5 | 51 | 219 |
| Captan | 2018 | PRVD2016-13 | 133-06-2 | 133-06-2 | 26.8 | 16.5 | 4200 | 560 | 100 | 6350 |
| Carbaryl | 2016 | PRVD2009-14; RVD2016-02 | 63-25-2 | 63-25-2 | 25 | 210 | 5 | 1.5 | 635 | |
| Carbathiin / carboxin | 2022 | EPA Benchmark | 5234-68-4 | 5234-68-4 | 600 | 42200 | 370 | 670 | ||
| Carbendazim | 2020 | RVD2020-13; PRVD2019-07; PRVD2011-07 | 10605-21-7 | 10605-21-7 | 13 | 0.4 | 75 | 1.5 | 470 | > 2400 |
| Carfentrazone-ethyl | 2012 | PRD2011-08 | 128639-02-1 | 128639-02-1 | 800 | 16 | > 4900 | 220 | 3.3 | 3 |
| Chlorantraniliprole | 2016 | ERC2008-03 | 500008-45-7 | 500008-45-7 | 13800 | 110 | 5.8 | 2.5 | 2090 | 1990 |
| Chlorfenapyr | 2016 | EPA Benchmark | 122453-73-0 | 122453-73-0 | 3.72 | 3.68 | 2.915 | 3.57 | ||
| Chlorimuron-ethyl | 2019 | PRVD2018-14 | 90982-32-4 | 90982-32-4 | > 1000 | 8200 | > 50000 | 106000 | 0.4 | 0.135 |
| Chlormequat chloride | 2022 | EPA Benchmark | 999-81-5 | 999-81-5 | > 50000 | 10000 | 8450 | 5000 | > 207000 | 2600 |
| Chloropicrin | 2014 | EPA Benchmark | 76-06-2 | 76-06-2 | 5.5 | 60 | 6.5 | |||
| Chlorothalonil | 2018 | PRVD2011-14 | 1897-45-6 | 1897-45-6 | 13 | 3 | 19 | 39 | 5 | 640 |
| Chlorpropham | 2008 | PACR2007-04 | 101-21-3 | 101-21-3 | 550 | 1300 | 835 | |||
| Chlorpyrifos | 2020 | PRVD2019-05 | 2921-88-2 | 2921-88-2 | 5.94 | 0.14 | 0.044 | 0.005 | 32 | 1000 |
| Chlorsulfuron | 2014 | EPA Benchmark | 64902-72-3 | 64902-72-3 | > 150000 | 32000 | > 185000 | 20000 | 50 | 0.35 |
| Chlorthal-dimethyl (DCPA) | 2016 | EPA Benchmark | 1861-32-1 | 1861-32-1 | 15000 | 13500 | > 11000 | > 11000 | ||
| Clethodim | 2017 | PRVD2016-11 | 99129-21-2 | 99129-21-2 | 340 | 10 | 2550 | 0.84 | 750 | 670 |
| Clodinafop-propargyl | 2020 | PRVD2018-16 | 105512-06-9 | 105512-06-9 | 21 | 14 | 25 | 230 | 20 | 24 |
| Clofentezine | 2014 | PRVD2013-05 | 74115-24-5 | 74115-24-5 | > 1000 | 980 | > 25650 | 500 | 10000 | |
| Clomazone | EPA Benchmark | 81777-89-1 | 81777-89-1 | 1450 | 350 | 2700 | 2200 | 167 | 30200 | |
| Clopyralid | 2011 | PRVD2010-17 | 1702-17-6 | 1702-17-6 | > 9990 | 10800 | 116000 | 17000 | 3450 | 44500 |
| Cloransulam-methyl | 2008 | PRD2008-09 | 147150-35-4 | 147150-35-4 | > 86000 | 63300 | 11300 | 0.9 | 0.78 | |
| Clothianidin | 2021 | ERC2011-01; SRD2021-03 | 210880-92-5 | 210880-92-5 | > 10150 | 9700 | 1.5 | 0.12 | 32000 | > 60500 |
| Copper 8-quinolinolate | 2022 | EPA Benchmark | 10380-28-6 | 10380-28-6 | 4.45 | 2.99 | 81 | 2.2 | > 50 | |
| Cyantraniliprole | 2013 | PRD2013-09 | 736994-63-1 | 736994-63-1 | > 1000 | 10700 | 10.2 | 6.5 | 7000 | > 6050 |
| Cyazofamid | 2017 | PRD2016-34 | 120116-88-3 | 120116-88-3 | 107 | 90.1 | 95 | 107 | 19 | 107 |
| Cyclaniliprole | 2017 | PRD2017-12 | 1031756-98-5 | 1031756-98-5 | > 63 | 212 | > 26.7 | 10 | > 76 | > 97.5 |
| Cyflumetofen | 2014 | PRD2014-10 | 400882-07-7 | 400882-07-7 | > 1.75 | 31.6 | > 8.6 | 16.2 | > 11.9 | > 19.15 |
| Cyfluthrin | 2021 | EPA Benchmark | 68359-37-5 | 68359-37-5 | 0.034 | 0.0042 | 0.0125 | 0.00012 | > 2 | |
| Cymoxanil | 2021 | PRVD2021-04 | 57966-95-7 | 57966-95-7 | 2900 | < 31 | 3050 | 67 | 100 | > 350 |
| Cypermethrin | 2018 | PRVD2016-18 | 52315-07-8 | 52315-07-8 | 0.33 | 0.14 | 0.003 | 0.04 | > 50 | > 0.7 |
| Cyprodinil | 2019 | EPA Benchmark | 121552-61-2 | 121552-61-2 | 1090 | 230 | 16 | 8.2 | 1970 | 5900 |
| Cyromazine | 2021 | PRVD2020-02 | 66215-27-8 | 66215-27-8 | 71500 | 14000 | 34470 | 25 | 62000 | |
| DEET | 2015 | EPA Benchmark | 134-62-3 | 134-62-3 | 37500 | 37500 | ||||
| Deltamethrin | 2018 | PRVD2015-07 | 52918-63-5 | 52918-63-5 | 0.22 | < 0.032 | 0.0036 | 0.0041 | > 310 | > 779 |
| Desmedipham | 2011 | EPA-HQ-OPP-2010-1044-0003 | 13684-56-5 | 13684-56-5 | 170 | 940 | 70 | >510 | ||
| Diazinon | 2005 | REV2005-06 | 333-41-5 | 333-41-5 | 9 | < 0.55 | 0.415 | 0.32 | ||
| Dicamba | 2008 | PRVD2007-05 | 1918-00-9 | 1918-00-9 | 13540 | 55350 | 4.9 | 250 | ||
| Dichlobenil | 2016 | EPA Benchmark | 1194-65-6 | 1194-65-6 | 2465 | < 330 | 3100 | 560 | 1500 | 30 |
| Dichlorprop-p | 2014 | PRD2013-15 | 15165-67-0 | 15165-67-0 | > 21600 | > 44000 | 103000 | 10000 | 16000 | |
| Dichlorvos (DDVP) | 2020 | PRVD2017-16 | 62-73-7 | 62-73-7 | 17 | 0.035 | 0.0058 | |||
| Difenoconazole | 2016 | PRD2015-10 | 119446-68-3 | 119446-68-3 | 81 | 8.7 | 385 | 5.6 | 50 | 900 |
| Diflubenzuron | EPA Benchmark | 35367-38-5 | 35367-38-5 | 12900 | 100 | 0.0014 | 0.00025 | 200 | 190 | |
| Diflufenzopyr | 2018 | PRVD2017-04 | 109293-97-2 | 109293-97-2 | 10600 | 7500 | 50 | > 175 | ||
| Dimethenamid-P | 2009 | PRD2009-04 | 163515-14-8 | 163515-14-8 | 630 | 300 | 6000 | 1020 | 8.5 | 4.5 |
| Dimethoate | 2015 | PRVD2011-12 | 60-51-5 | 60-51-5 | 600 | 430 | 21.5 | 40 | ||
| Dimethomorph | 2020 | RVD2020-05; PRVD2019-03 | 110488-70-5 | 110488-70-5 | 340 | 56 | 10000 | 100 | 11900 | 11020 |
| Dinotefuran | 2016 | EPA Benchmark | 165252-70-0 | 165252-70-0 | > 49550 | 6360 | > 484150 | > 95300 | > 97600 | > 110000 |
| Diquat | EPA Benchmark | 85-00-7 | 85-00-7 | 7400 | 122 | 385 | < 36 | 9.4 | 0.75 | |
| Dithiopyr | 2009 | PRVD2009-01 | 97883-45-8 | 97883-45-8 | 48 | 56 | 550 | 21 | ||
| Diuron | 2021 | EPA Benchmark | 330-54-1 | 330-54-1 | 660 | 26.4 | 87.5 | 0.83 | 3.08 | 0.13 |
| Dodine | 2022 | EPA Benchmark | 2439-10-3 | 2439-10-3 | 285 | 99 | 8.9 | 4.4 | 0.08 | 30 |
| Endothal | 2021 | EPA Benchmark | 145-73-3 | 145-73-3 | 24500 | 1300 | 46000 | 1500 | ||
| EPTC / S-ethyl dipropylthiocarbamate | 2008 | PRVD2007-03 | 759-94-4 | 759-94-4 | 1400 | 7000 | 680 | 2800 | ||
| Ethaboxam | 2014 | PRD2014-13 | 162650-77-3 | 162650-77-3 | 218 | 880 | 185 | 50 | 160 | > 13000 |
| Ethalfluralin | 2016 | EPA Benchmark | 55283-68-6 | 55283-68-6 | 16 | 0.4 | 30 | 24 | 25 | 7.3 |
| Ethametsulfuron-methyl | 2008 | PRVD2008-05 | 97780-06-8 | 97780-06-8 | > 60000 | > 17000 | 15000 | > 1300 | 0.025 | |
| Ethephon | 2020 | PRVD2018-01 | 16672-87-0 | 16672-87-0 | 31100 | 43000 | 15850 | 11200 | 10450 | > 35350 |
| Ethofumesate | 2021 | EPA Benchmark | 26225-79-6 | 26225-79-6 | 5760 | < 306 | 17150 | 300 | > 2760 | 39000 |
| Etofenprox | 2023 | EPA Benchmark | 80844-07-01 | 80844-07-01 | 1.35 | 23 | 0.4 | 0.17 | > 18.8 | > 26 |
| Etridiazole | 2022 | EPA Benchmark | 2593-15-9 | 2593-15-9 | 385 | 101 | 1540 | 370 | 72 | 8120 |
| Famoxadone | 2003 | REG2003-10 | 131807-57-3 | 131807-57-3 | 1.2 | 1.4 | 5.9 | 0.085 | 11.5 | 40.5 |
| Fenamidone | 2003 | REG2003-11 | 161326-34-7 | 161326-34-7 | 350 | 110 | 12.5 | > 365 | > 440 | |
| Fenazaquin | 2023 | PRD2022-11 | 120928-09-8 | 120928-09-8 | 0.39 | 0.95 | 2.8 | 0.52 | > 104 | > 37.55 |
| Fenbuconazole | 2006 | PRDD2005-03 | 114369-43-6 | 114369-43-6 | 420 | 82 | 780 | 78 | 270 | 740 |
| Fenbutatin oxide | EPA Benchmark | 13356-08-6 | 13356-08-6 | 0.85 | 0.31 | 15.5 | 16 | |||
| Fenhexamid | 2021 | PRVD2020-01 | 126833-17-8 | 126833-17-8 | 123 | 101 | > 9400 | 1000 | 670 | > 500 |
| Fenoxaprop-P-ethyl | 2016 | EPA Benchmark | 71283-80-2 | 71283-80-2 | 230 | 44 | > 550 | 230 | 430 | > 3000 |
| Fenpropathrin | 2020 | PRD2020-05 | 39515-41-8 | 39515-41-8 | 0.22 | 0.091 | 0.0039 | 0.027 | > 295 | > 500 |
| Ferbam | 2018 | PRVD2016-05 | 14484-64-1 | 14484-64-1 | 4.2 | 0.32 | 5.5 | 1 | 70 | 800 |
| Flazasulfuron | 2018 | PRD2018-03 | 10404-78-0 | 10404-78-0 | > 9800 | 5000 | > 53000 | 6390 | 2.05 | 0.02 |
| Flonicamid | 2011 | PRD2010-25 | 158062-67-0 | 158062-67-0 | > 9800 | 9500 | > 49300 | 3010 | > 48350 | > 59500 |
| Florasulam | 2005 | PRDD2004-04 | 145701-23-1 | 145701-23-1 | 100000 | 119000 | 174000 | 38900 | 1.75 | 0.62 |
| Florpyrauxifen-benzyl | 2023 | PRD2022-17 | 1390661-72-9 | 1390661-72-9 | > 5.18 | 37.3 | > 31.3 | 38.5 | > 30.6 | 0.0036 |
| Florylpicoxamid | 2023 | PRD2022-14 | 1961312-55-9 | 1961312-55-9 | 1.1 | 3.42 | 29.5 | 7.23 | 51.5 | 477.5 |
| Fluazaindolizine | 2021 | PRD2021-03 | 1254304-22-7 | 1254304-22-7 | > 6000 | ≥ 12000 | > 60000 | 570 | 12000 | 8100 |
| Fluazifop-P-butyl | 2015 | EPA Benchmark | 79241-46-6 | 79241-46-6 | 225 | 203 | 2570 | |||
| Fluazinam | 2018 | PRD2017-14 | 79622-59-6 | 79622-59-6 | 3.6 | 0.69 | 110 | 68 | 75 | > 26.8 |
| Flucarbazone | 2023 | PRVD2022-02 | 181274-17-9 | 181274-17-9 | > 9670 | 2750 | > 54500 | 114600 | 3200 | 6 |
| Fludioxonil | 2008 | ERC2008-02 | 131341-86-1 | 131341-86-1 | 23 | 19 | 450 | 19 | 44 | |
| Fluensulfone | 2017 | PRD2017-02 | 318290-98-1 | 318290-98-1 | 250 | 630 | 190 | 200 | 7.5 | 1350 |
| Flufenacet | 2003 | RDD2003-07 | 142459-58-3 | 142459-58-3 | 230 | 179 | 1400 | 6330 | 1.45 | 1.225 |
| Flumetsulam | 2014 | PRVD2014-05 | 98967-40-9 | 98967-40-9 | > 29300 | 197000 | 295000 | 200000 | 2.5 | 2.5 |
| Flumioxazin | 2014 | ERC2010-05; PRD2013-20 | 103361-09-7 | 103361-09-7 | 230 | 7.7 | 2950 | 50 | 0.415 | 0.165 |
| Fluopicolide | 2011 | ERC2011-08 | 239110-15-7 | 239110-15-7 | 40 | 150 | > 850 | 190 | > 220 | > 320 |
| Fluopyram | 2014 | ERC2014-02 | 658066-35-4 | 658066-35-4 | > 178 | 135 | > 8500 | 1214 | 1700 | 1300 |
| Fluoxastrobin | 2016 | PRD2012-07 | 361377-29-9 | 361377-29-9 | 43.5 | 55.7 | 60 | 180 | 130 | 600 |
| Flupyradifurone | 2014 | PRD2014-20 | 951659-40-8 | 951659-40-8 | > 7050 | 4410 | 32 | 10.5 | > 21400 | > 33850 |
| Fluroxypyr | 2012 | PRD2012-18 | 81406-37-3 | 81406-37-3 | > 20 | 200 | > 100 | 60.5 | 18.5 | > 1155 |
| Flutianil | 2022 | PRD2021-09 | 958647-10-4 | 958647-10-4 | > 0.522 | 2.24 | > 3.25 | 7.11 | > 6.85 | > 214 |
| Flutriafol | 2015 | PRD2014-16 | 76674-21-0 | 76674-21-0 | 92 | 390 | 415 | 13 | 285 | 325 |
| Fluxapyroxad | 2012 | PRD2012-09 | 907204-31-3 | 907204-31-3 | 29 | 36 | 4.15 | 460 | 185 | 1095 |
| Folpet | 2020 | PRVD2018-05 | 133-07-3 | 133-07-3 | 1.5 | 8.81 | 10 | 1880 | 20.1 | > 1450 |
| Fomesafen | 2018 | PRVD2018-15 | 72178-02-0 | 72178-02-0 | 17000 | 165000 | 50000 | 46 | 105 | |
| Foramsulfuron | 2008 | REG2003-08; PRD2008-05 | 173159-57-4 | 173159-57-4 | 100900 | 102500 | 102500 | 330 | 0.33 | |
| Formetanate hydrochloride | 2009 | PRVD2008-26 | 23422-53-9 | 23422-53-9 | 270 | 480 | 45 | 0.5 | ||
| Fosetyl-Al | 2019 | PRVD2017-19 | 39148-24-8 | 39148-24-8 | 8300 | 213 | 1800 | 17000 | 2750 | 40000 |
| Glufosinate-ammonium | 2014 | EPA Benchmark | 77182-82-2 | 77182-82-2 | > 156000 | 50000 | 325500 | 31000 | 72 | 1470 |
| Glyphosate | 2017 | PRVD2015-01 | 1071-83-6 | 1071-83-6 | 80400 | 25700 | 16900 | 7140 | 6550 | 10600 |
| Halauxifen-methyl | 2014 | PRD2014-12 | 943831-98-9 | 943831-98-9 | 201 | 77 | 1060 | 484 | 280.4 | 0.0745 |
| Halosulfuron-methyl | 2014 | PRD2014-05 | 100784-20-1 | 100784-20-1 | > 11800 | 34000 | > 53500 | 7200 | 2.65 | 0.019 |
| Hexazinone | 2019 | EPA Benchmark; REV2017-11 | 51235-04-2 | 51235-04-2 | 137000 | 17000 | 75800 | 20000 | 3.5 | 37.4 |
| Icaridin | 2015 | EPA Benchmark | 119515-38-7 | 119515-38-7 | 86500 | > 51500 | 87300 | |||
| Imazamethabenz-methyl | 2009 | PRVD2008-29 | 81405-85-8 | 81405-85-8 | > 840 | < 320 | > 50000 | 8500 | 13450 | 36.4 |
| Imazamox | 2015 | EPA Benchmark | 114311-32-9 | 114311-32-9 | > 59500 | > 61000 | > 37 | 8 | ||
| Imazapyr | 2020 | PRD2020-17 | 81334-34-1 | 81334-34-1 | > 10000 | 43100 | > 50000 | 97000 | 5750 | 9 |
| Imazethapyr | 2010 | PRVD2010-02 | 81335-77-5 | 81335-77-5 | 34000 | 14000 | > 500000 | 103000 | 35000 | 5.05 |
| Imidacloprid | 2021 | PRVD2016-20; RVD2021-05 | 138261-41-3 | 138261-41-3 | 1780 | 1200 | 0.54 | 0.16 | 6185 | > 52500 |
| Indaziflam | 2011 | PRD2011-20 | 950782-86-2 | 950782-86-2 | 32 | 465.3 | > 90 | 340 | 30.4 | 0.03405 |
| Inpyrfluxam | 2020 | PRD2020-10 | 1352994-67-2 | 1352994-67-2 | 3.1 | 1.6 | 550 | 140 | 1965 | 2850 |
| Iodocarb | 2017 | PRVD2016-25 | 55406-53-6 | 55406-53-6 | 6.7 | 80 | ||||
| Iodosulfuron-methyl-sodium | 2009 | PRD2008-06 | 144550-36-7 | 144550-36-7 | 88000 | 28100 | 9100 | 14 | 390 | |
| Ipconazole | 2013 | ERC2011-04 | 125225-28-7 | 125225-28-7 | 130 | 0.18 | 850 | 10.9 | ||
| Ipflufenoquin | 2023 | PRD2022-18 | 1314008-27-9 | 1314008-27-9 | 360 | 86 | 1200 | 1100 | 900 | > 2300 |
| Iprodione | 2018 | PRVD2016-09 | 36734-19-7 | 36734-19-7 | 310 | 260 | 120 | 170 | 24 | 6320 |
| Isofetamid | 2016 | PRD2014-19 | 875915-78-9 | 875915-78-9 | 22.7 | 860 | 1175 | 800 | 1075 | 1225 |
| Isoxaben | 2015 | EPA Benchmark | 82558-50-7 | 82558-50-7 | > 500 | 400 | > 650 | 690 | 922 | 10 |
| Isoxaflutole | 2022 | PRVD2021-02 | 141112-29-0 | 141112-29-0 | 170 | 100 | > 750 | 350 | 60 | 1.6 |
| Kresoxim-methyl | 2022 | PRVD2020-10 | 143390-89-0 | 143390-89-0 | 7.5 | 13 | 70 | 55 | 14.5 | > 288 |
| Lambda-cyhalothrin | 2021 | RVD2021-04 | 91465-08-6 | 91465-08-6 | 0.113 | 0.031 | 0.00094 | 0.00198 | 2.5 | |
| Linuron | 2020 | PRVD2012-02; RVD2020-10 | 330-55-2 | 330-55-2 | 315 | 42 | 60 | 130 | 7 | 10.5 |
| Malathion | 2012 | PRVD2010-18 | 121-75-5 | 121-75-5 | 7.5 | 2 | 0.13 | 0.06 | ||
| Maleic hydrazide | 2015 | EPA Benchmark | 123-33-1 | 123-33-1 | > 120000 | 9600 | 53750 | 99000 | > 95000 | 114000 |
| Mancozeb | 2020 | RVD2020-12 | 8018-01-7 | 8018-01-7 | 20 | 1.35 | 31.5 | 7.3 | 1.5 | 521 |
| Mandestrobin | 2016 | PRD2016-03 | 173662-97-0 | 173662-97-0 | 93 | 150 | 600 | 560 | 32.5 | 1150 |
| Mandipropamid | 2009 | ERC2009-01 | 374726-62-2 | 374726-62-2 | 400 | 480 | 3550 | 280 | > 1250 | > 2200 |
| MCPA | 2008 | PACR2006-05 | 94-74-6 | 94-74-6 | 9600 | 31000 | 4700 | 13 | ||
| MCPB | 2012 | PRVD2011-06 | 94-81-5 | 94-81-5; 6062-26-6 | 390 | 25000 | 190 | 105 | ||
| Mecoprop-P (MCPP-P) | 2016 | EPA Benchmark | 16484-77-8 | 16484-77-8 | > 46500 | > 45500 | 50800 | 14 | 1300 | |
| Mefentrifluconazole | 2019 | PRD2019-09 | 1417782-03-6 | 1417782-03-6 | 53.6 | 22.2 | > 90 | 9.13 | 383 | > 937 |
| Mesosulfuron-methyl | 2010 | PRD2010-01 | 208465-21-8 | 208465-21-8 | > 9150 | > 45100 | 1700 | 105 | 0.32 | |
| Mesotrione | 2005 | REG2005-02 | 104206-82-8 | 104206-82-8 | > 12000 | 12500 | 450000 | 180000 | 2250 | 2 |
| Metalaxyl | 2019 | EPA Benchmark | 57837-19-1 | 57837-19-1; 70630-17-0 | 65000 | 9100 | 14000 | 1200 | 85000 | |
| Metaldehyde | 2021 | EPA Benchmark | 108-62-3 | 108-62-3 | 37500 | 37500 | > 38800 | 73900 | 22100 | > 105000 |
| Metconazole | 2015 | PRD2013-11 | 125116-23-6 | 125116-23-6 | 220 | 2.9 | 2100 | 160 | 48.5 | 12.5 |
| Methamidophos (acephate transformation product) | 2016 | PRVD2016-01 | 10265-92-6 | 10265-92-6 | 2500 | 13 | ||||
| Methomyl | 2018 | PRVD2016-02 | 16752-77-5 | 16752-77-5 | 347 | 57 | 15 | 0.4 | ||
| Methoxyfenozide | 2004 | REG2004-08 | 161050-58-4 | 161050-58-4 | 3300 | 530 | 1700 | 6.5 | ||
| Methyl bromide | 2014 | EPA Benchmark | 74-83-9 | 74-83-9 | 1950 | 1300 | 2200 | |||
| Metiram | 2018 | PRVD2014-03 | 9006-42-2 | 9006-42-2 | 760 | 385 | 25 | 27 | ||
| Metolachlor (S and R enantiomer) | 2022 | EPA Benchmark | 87392-12-9 | 87392-12-9 | 1600 | 30 | 11750 | 3200 | 8 | 14 |
| Metrafenone | 2011 | ERC2011-10 | 220899-03-6 | 220899-03-6 | 82 | 118 | 460 | 716 | 430 | 380 |
| Metribuzin | 2016 | EPA Benchmark | 21087-64-9 | 21087-64-9 | 21000 | < 3000 | 2100 | 1290 | 8.1 | 130 |
| Metsulfuron-methyl | 2008 | PRVD2008-08 | 74223-64-6 | 74223-64-6 | > 11300 | > 79400 | > 57500 | 100000 | 46.95 | 0.035 |
| MGK-264 (N-octyl bicycloheptene dicarboximide) | 2017 | PRVD2017-15; EPA Benchmark | 113-48-4 | 113-48-4 | 140 | 8 | 1150 | 20 | 8 | |
| Myclobutanil | 2010 | PRVD2010-14 | 88671-89-0 | 88671-89-0 | 140 | 200 | 5500 | 1000 | 600 | 3150 |
| Naled | 2022 | PSRD2019-03; SRD2022-01 | 300-76-5 | 300-76-5 | 8.87 | 6.9 | 0.175 | 0.098 | 6 | |
| Naphthalene acetic acid | 2021 | EPA Benchmark | 86-87-3 | 86-87-3 | 14000 | 1200 | 90000 | 11000 | 6100 | 4200 |
| Napropamide | 2021 | EPA Benchmark | 15299-99-7 | 15299-99-7 | 6000 | 1100 | 12350 | 1100 | 2020 | 350 |
| Niclosamide | 2019 | EPA Benchmark | 50-65-7 | 50-65-7 | 15 | 17 | 56 | 41 | 630 | |
| Nicosulfuron | 2008 | PRVD2008-01 | 111991-09-4 | 111991-09-4 | 37.5 | 24000 | 45000 | 43000 | 1660 | 140 |
| Novaluron | 2007 | PRD2006-05 | 116714-46-6 | 116714-46-6 | > 95 | 6.5 | 0.2 | 0.0299 | > 4925 | > 35.35 |
| Oxadiazon | 2021 | EPA Benchmark | 19666-30-9 | 19666-30-9 | 600 | 0.88 | > 1200 | 30 | 5.2 | 41 |
| Oxamyl | 2008 | PRVD2007-02; EPA Benchmark | 23135-22-0 | 23135-22-0 | 370 | > 500 | 90 | 27 | 120 | 30000 |
| Oxathiapiprolin | 2015 | PRD2015-22 | 1003318-67-9 | 1003318-67-9 | 69 | 460 | > 280 | 750 | > 71 | > 395 |
| Oxyfluorfen | 2022 | EPA Benchmark | 42874-03-3 | 42874-03-3 | 100 | 1.3 | 750 | 13 | 1.1 | 0.33 |
| Paraquat | EPA Benchmark | 4685-14-7 | 4685-14-7 | 6000 | < 369 | 600 | < 36.9 | 0.396 | 71 | |
| Pendimethalin | 2019 | EPA Benchmark | 40487-42-1 | 40487-42-1 | 69 | 6.3 | 140 | 14.5 | 5.2 | 12.5 |
| Penflufen | 2012 | PRD2012-02 | 494793-67-8 | 494793-67-8 | 9 | 24.3 | > 2250 | 780 | > 2550 | > 2350 |
| Pentachlorophenol (PCP) | 2020 | EPA Benchmark | 87-86-5 | 87-86-5 | 7.5 | 11 | 46 | 6.9 | 27 | 240 |
| Penthiopyrad | 2012 | PRD2011-26 | 183675-82-3 | 183675-82-3 | 29 | 100 | 1265.5 | 471 | 766.5 | > 603 |
| Permethrin | 2019 | PRVD2017-18 | 52645-53-1 | 52645-53-1 | 1.2 | 0.3 | 0.019 | 0.0047 | 6.25 | > 3.2 |
| Pethoxamid | 2020 | PRD2019-12 | 106700-29-2 | 106700-29-2 | 195 | 722 | 6850 | 2800 | 0.85 | 1.73 |
| Phenmedipham | 2020 | EPA Benchmark | 13684-63-4 | 13684-63-4 | 850 | 93 | 940 | 5.06 | 149 | 160 |
| Phorate | 2021 | EPA Benchmark | 298-02-2 | 298-02-2 | 1.17 | 0.34 | 0.3 | 0.21 | 1300 | 9000 |
| Phosmet | 2020 | RVD2020-11 | 732-11-6 | 732-11-6 | 9.85 | 3.2 | 1 | 0.75 | 255 | |
| Picarbutrazox | 2021 | PRD2021-02 | 500207-04-5 | 500207-04-5 | > 29 | 19 | > 140 | 130 | > 169 | > 157 |
| Picloram | 2015 | 2015 EPA Benchmark | 1918-02-1 | 1918-02-1 | 2750 | 550 | 17200 | 11800 | 34900 | |
| Picolinafen | 2005 | PRDD2005-05 | 137641-05-5 | 137641-05-5 | 570 | 6.4 | 450 | 7.06 | 0.068 | 6 |
| Picoxystrobin | 2012 | PRD2012-10 | 117428-22-5 | 117428-22-5 | 44.7 | 10 | 16 | 8 | 16.4 | 115 |
| Pinoxaden | 2006 | REG2006-14; EPA Benchmark | 243973-20-8 | 243973-20-8 | 16000 | > 960 | 3000 | 5800 | 130 | 2900 |
| Piperonyl butoxide | 2023 | PRVD2020-09 | 51-03-6 | 51-03-6 | 190 | 40 | 255 | 19 | 1050 | 6630 |
| Poly[oxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene dichloride | 2021 | EPA Benchmark | 31512-74-0 | 31512-74-0 | 23.5 | 19 | 140 | 15 | 83 | 1100 |
| Prohexadione-calcium | 2022 | PRD2022-05 | 127277-53-6 | 127277-53-6 | > 9200 | > 45000 | > 550 | > 600 | ||
| Prometryn | 2014 | EPA Benchmark | 7287-19-6 | 7287-19-6 | 1455 | 620 | 4850 | 1000 | 1.04 | 11.9 |
| Propamocarb hydrochloride | 2019 | EPA Benchmark | 25606-41-1 | 25606-41-1 | > 49500 | 6300 | > 51700 | 9300 | > 170000 | 172000 |
| Propiconazole | 2011 | PRVD2011-02 | 60207-90-1 | 60207-90-1 | 85 | 95 | 1100 | 310 | 46.5 | 2414 |
| Propoxur | 2011 | PRVD2011-09 | 114-26-1 | 114-26-1 | 370 | 5.5 | ||||
| Propoxycarbazone-sodium | 2016 | PRD2016-06 | 181274-15-7 | 181274-15-7 | > 7720 | > 105000 | > 53500 | > 106000 | 785 | 3.2 |
| Propyzamide | 2016 | EPA Benchmark | 23950-58-5 | 23950-58-5 | 5300 | 224 | > 2800 | 600 | 760 | 1180 |
| Prosulfuron | 2015 | PRVD2015-02 | 94125-34-5 | 94125-34-5 | > 10000 | 5800 | > 60000 | 148000 | 5.3 | 0.63 |
| Prothioconazole | 2012 | REG2007-03 | 178928-70-6 | 178928-70-6 | 910 | 930 | 230 | 12.17 | 3.34 | |
| Pydiflumetofen | 2018 | PRVD2018-06 | 1228284-64-7 | 1228284-64-7 | 18.6 | 64 | 210.5 | 42 | 750 | > 3150 |
| Pymetrozine | 2002 | PRDD2002-03 | 123312-89-0 | 123312-89-0 | 128000 | 11700 | < 19200 | 25.1 | 6800 | > 109000 |
| Pyraclostrobin | 2008 | PRD2008-04 | 175013-18-0 | 175013-18-0 | 0.62 | 2.35 | 7.85 | 4 | 0.75 | 860 |
| Pyraflufen-ethyl | 2016 | PRD2016-32 | 129630-19-9 | 129630-19-9 | 8.6 | 0.89 | 10 | 81 | 0.16 | 8 |
| Pyrasulfotole | 2007 | ERC2007-11 | 365400-11-9 | 365400-11-9 | > 9600 | 580 | > 47900 | 12800 | 5500 | 14 |
| Pyraziflumid | 2023 | PRD2022-04 | 942515-63-1 | 942515-63-1 | 170 | 390 | > 1900 | 90 | > 49 | > 55 |
| Pyrethrins | 2023 | RVD2023-06 | 8003-34-7 | 8003-34-7 | 0.51 | 1.9 | 5.8 | 0.86 | 52.5 | 615 |
| Pyridaben | 2018 | PRVD2016-04 | 96489-71-3 | 96489-71-3 | 0.073 | 0.28 | 0.265 | 0.044 | > 6.7 | > 8.1 |
| Pyridate | 2021 | PRD2021-04 | 55512-33-9 | 55512-33-9 | 78 | 245 | 28 | 12.5 | 620 | |
| Pyrimethanil | 2006 | REG2006-04 | 53112-28-0 | 53112-28-0 | 4000 | 77 | 1500 | 970 | 120 | 870 |
| Pyriofenone | 2016 | PRD2016-23 | 688046-61-9 | 688046-61-9 | > 115 | 400 | 775 | 89 | 31 | > 787 |
| Pyriproxyfen | 2021 | PRDD2006-04 | 95737-68-1 | 95737-68-1 | 45 | 4.3 | 200 | 0.02 | ||
| Pyroxasulfone | 2016 | PRD2012-20 | 447399-55-5 | 447399-55-5 | > 220 | 2000 | > 2200 | 1900 | 0.1585 | 2.5 |
| Pyroxsulam | 2010 | ERC2010-04 | 422556-08-9 | 422556-08-9 | > 8700 | 10100 | > 50000 | 10400 | 56 | 1.29 |
| Quinclorac | 2016 | PRVD2016-15 | 84087-01-4 | 84087-01-4 | > 10000 | 16000 | 56600 | 110000 | > 250000 | > 250000 |
| Quinoxyfen | 2013 | ERC2013-02 | 124495-18-7 | 124495-18-7 | 27 | 13 | 41.5 | 27.8 | 13.4 | > 830 |
| Quintozene (PCNB) | EPA Benchmark | 82-68-8 | 82-68-8 | 50 | 13 | 385 | 18 | |||
| Quizalofop-P-ethyl | 2024 | PRVD2022-17 | 100646-51-3 | 100646-51-3 | 20.9 | 44 | 145 | 23 | 10.5 | 82.8 |
| Rimsulfuron | 2008 | PRVD2008-06 | 122931-48-0 | 122931-48-0 | > 10000 | 125000 | > 50000 | 820 | 600 | 2.3 |
| Rotenone | 2022 | EPA Benchmark | 83-79-4 | 83-79-4 | 0.97 | 1.01 | 1.85 | 1.25 | ||
| Saflufenacil | 2010 | PRD2009-18 | 372137-35-4 | 372137-35-4 | > 11000 | 1000 | > 49000 | 650 | 21 | 44 |
| Sedaxane | 2012 | ERC2012-01 | 874967-67-6 | 874967-67-6 | 62 | 165 | 2980 | 750 | 800 | 1350 |
| Sethoxydim | 2015 | EPA Benchmark | 74051-80-2 | 74051-80-2 | 85000 | 4860 | 39050 | > 250 | 210 | |
| Simazine | 2016 | EPA Benchmark | 122-34-9 | 122-34-9 | 3200 | 60 | 500 | 40 | 6 | 67 |
| S-Methoprene | 2016 | EPA Benchmark | 40596-69-8 | 40596-69-8 | 380 | 48 | 165 | 51 | ||
| Spinetoram | 2013 | PRD2012-31 | 187166-40-1 | 187166-40-1; 187166-15-0 | 269 | 186 | 1700 | 0.062 | 65 | 7100 |
| Spinosad | 2001 | REG2001-10 | 168316-95-8 | 168316-95-8; 131929-60-7; 131929-63-0 | 2100 | 500 | 300 | 0.62 | 49 | 1860 |
| Spirodiclofen | 2006 | REG2006-06 | 148477-71-8 | 148477-71-8 | 35.1 | 1.95 | 50.8 | 11.1 | 60 | 63.8 |
| Spiromesifen | 2007 | ERC2007-08 | 283594-90-1 | 283594-90-1 | 1.68 | 1.5 | > 46.15 | 0.25 | > 22.2 | > 50.7 |
| Spirotetramat | 2008 | PRD2008-07 | 203313-25-1 | 203313-25-1 | 220 | 534 | 650 | 100 | 2025 | 2245 |
| Spiroxamine | 2015 | PRD2015-14 | 118134-30-8 | 118134-30-8 | 241 | 2.6 | 1500 | 34 | 0.18 | 955 |
| Streptomycin | 2020 | EPA Benchmark | 3810-74-0 | 3810-74-0 | > 90000 | 14400 | 21000 | 12200 | 7 | > 1000 |
| Sulfentrazone | 2011 | ERC2010-08 | 122836-35-5 | 122836-35-5 | 9380 | 2950 | 30200 | 51 | 15.5 | 14.5 |
| Sulfoxaflor | 2015 | PRD2015-08 | 946578-00-3 | 946578-00-3 | > 36300 | 630 | > 199500 | 45.5 | 33050 | > 50000 |
| TCMTB [2-(thiocyanomethylthio) benzothiazole] | 2017 | PRVD2016-23 | 21564-17-0 | 21564-17-0 | 0.87 | 0.34 | 11 | 0.89 | 50 | 140 |
| Tebuconazole | 2017 | PRD2016-33 | 107534-96-3 | 107534-96-3 | 570 | 12 | 740 | 120 | 820 | 72 |
| Tebufenozide | 2021 | PRVD2019-06; RVD2021-01 | 112410-23-8 | 112410-23-8 | 300 | > 710 | 150 | 9.7 | > 370 | 80 |
| Tefluthrin | 2010 | PRVD2010-01 | 79538-32-2 | 79538-32-2 | 0.006 | 0.00397 | 0.035 | 0.792 | > 525 | |
| Tembotrione | 2012 | ERC2012-02 | 335104-84-2 | 335104-84-2 | > 10000 | 604 | 24450 | 2000 | 155 | > 2.6 |
| Tepraloxydim | 2004 | PRDD2004-01 | 149979-41-9 | 149979-41-9 | 44800 | 10200 | 1110 | |||
| Terbacil | 2022 | EPA Benchmark | 5902-51-2 | 5902-51-2 | 23100 | 1200 | 32500 | 50 | 11 | 140 |
| Tetraconazole | 2019 | PRD2012-29 | 112281-77-3 | 112281-77-3 | 385 | 300 | 1320 | 190 | 135 | 160 |
| Tetramethrin | 2018 | PRVD2016-10 | 7696-12-0 | 7696-12-0 | 0.37 | 17.5 | ||||
| Tetraniliprole | 2020 | PRD2019-14 | 1229654-66-3 | 1229654-66-3 | > 1090 | 646 | > 15 | 0.704 | > 1690 | > 5650 |
| Thiabendazole | 2020 | EPA Benchmark | 148-79-8 | 148-79-8 | 280 | 110 | 155 | 42 | 1420 | 2320 |
| Thiacloprid | 2007 | PRD2007-02 | 111988-49-9 | 111988-49-9 | 2520 | 780 | 20.4 | 0.68 | 23000 | > 47700 |
| Thiamethoxam | 2021 | ERC2007-01; SRD2021-04 | 153719-23-4 | 153719-23-4 | 100000 | 20000 | 9 | 0.3 | 100000 | 90200 |
| Thiencarbazone-methyl | 2011 | ERC2010-03 | 317815-83-1 | 317815-83-1 | > 10400 | 4800 | > 49300 | 3540 | 85 | 0.17 |
| Thifensulfuron-methyl | 2008 | PRVD2008-03 | 79277-27-3 | 79277-27-3 | > 10000 | 250000 | 235000 | 100000 | 8.15 | 0.5 |
| Thiophanate-methyl | 2020 | PRVD2019-07 | 23564-05-8 | 23564-05-8 | 830 | 320 | 2700 | 160 | 470 | > 2350 |
| Thiram | 2016 | PRVD2016-07 | 137-26-8 | 137-26-8 | 4.2 | 0.32 | 5.5 | 1 | 70 | 800 |
| Tiafenacil | 2022 | PRD2022-01 | 1220411-29-9 | 1220411-29-9 | 45 | 4.3 | 200 | 0.02 | ||
| Tioxazafen | 2018 | PRD2017-10 | 330459-31-9 | 330459-31-9 | 9.11 | 9.4 | > 600 | 5.9 | 62.65 | > 477 |
| Tolpyralate | 2017 | PRD2017-13 | 1101132-67-5 | 1101132-67-5 | > 1980 | 33.2 | > 9750 | 8960 | 2720 | 2.945 |
| Topramezone | 2006 | REG2006-09 | 210631-68-8 | 210631-68-8 | 97400 | 2930 | 100000 | 48600 | 3000 | 1 |
| Tralkoxydim | 2011 | PRVD2009-08 | 87820-88-0 | 87820-88-0 | > 720 | 1360 | 2100 | > 2550 | 500 | |
| Triallate | 2008 | PRVD2007-08 | 2303-17-5 | 2303-17-5 | 69.8 | 38 | 45.5 | 13 | 12.5 | 2400 |
| Tribenuron-methyl | 2016 | EPA Benchmark | 101200-48-0 | 101200-48-0 | > 50000 | 11800 | 360000 | < 28000 | 22 | 2 |
| Triclopyr | 2022 | EPA Benchmark | 55335-06-3 | 64700-56-7; 55335-06-3 | 180 | 26 | 175 | 170 | 100 | 880 |
| Trifloxystrobin | 2009 | REG2004-03 | 141517-21-7 | 141517-21-7 | 7.2 | 4.3 | 1.5 | 2.76 | 2 | 410 |
| Trifludimoxazin | 2021 | PRD2020-15 | 1258836-72-4 | 1258836-72-4 | > 168 | 0.82 | > 36 | 10.7 | 0.0575 | |
| Trifluralin | 2016 | EPA Benchmark | 1582-09-8 | 1582-09-8 | 9.25 | 1.9 | 125.5 | 2.4 | 21.9 | 49.7 |
| Triflusulfuron-methyl | 2015 | PRVD2014-06 | 126535-15-7 | 126535-15-7 | 21000 | 33.75 | 2.03 | |||
| Triforine | 2019 | PRVD2019-02 | 26644-46-2 | 26644-46-2 | > 1250 | 4475 | 1670 | 189800 | > 2900 | |
| Trinexapac-ethyl | 2022 | PRD2020-13 | 95266-40-3 | 95266-40-3 | 3500 | 410 | 29000 | 2400 | 175 | 95 |
| Triticonazole | 2022 | PRVD2021-05 | 131983-72-7 | 131983-72-7 | > 360 | 21 | 4500 | 78 | 475 | 550 |
| Ziram | 2018 | PRVD2016-06 | 137-30-4 | 137-30-4 | 0.97 | < 0.32 | 24 | 1 | 33.5 | 370 |
| Zoxamide | 2023 | PRVD2022-06 | 156052-68-5 | 156052-68-5 | 80 | 3.48 | > 210 | 39 | 5 | 8.5 |
ALRV table information
Empty cells indicate that acceptable aquatic toxicity values are not available.
ALRVs preceded by ">" were derived from a "greater-than" value and may overestimate toxicity. ALRVs preceded by "<" were derived from a "less-than" value and may underestimate toxicity.
Footnotes
- Footnote 1
-
ALRV Year Updated refers to the year of publication of the final decision for the assessment upon which the latest ALRV was based.
- Footnote 2
-
ALRV Reference refers to the published document that contains the toxicity values used to derive the ALRV. Where the ALRV reference indicates "EPA Benchmark", no ALRV was available and the EPA Aquatic Life Benchmark was used.
- Footnote 3
-
CAS numbers:
- Representative CAS number is a single CAS number associated with the active that has been selected to represent the active for the purposes of data analysis (for example, comparison against water monitoring data available on the Open Government Portal).
- Registered CAS number(s) includes CAS numbers of chemical forms associated with the active as it is currently registered; may include multiple CAS numbers.
- Footnote 4
-
Acute Fish ALRV = Toxicity value x UF. UF = 0.1 for LC50 and EC50 values; no UF is applied to NOEC and HC5 values. The selected toxicity value is usually the lowest acute endpoint in a standardized test; examples of test species are Rainbow Trout (Oncorhynchus mykiss), Fathead Minnow (Pimephales promelas), and Bluegill Sunfish (Lepomis macrochirus). NOECs for acute fish endpoints are based on old methods and are updated as actives go through assessments using new methodology.
- Footnote 5
-
Chronic Fish ALRV = Toxicity value. UFs are not applied to chronic toxicity values. The selected toxicity value is usually the lowest NOEC or NOEL from a life-cycle or early life stage test; examples of test species are Rainbow Trout (Oncorhynchus mykiss), Fathead Minnow (Pimephales promelas), and Bluegill Sunfish (Lepomis macrochirus).
- Footnote 6
-
Acute Invertebrate ALRV = Toxicity value x UF. UF = 0.5 for LC50 and EC50 values; no UF is applied to HC5 values. The selected toxicity value is usually the lowest acute endpoint in a standardized test; test species are generally Chironomus or Daphnia species.
- Footnote 7
-
Chronic Invertebrate ALRV = Toxicity value. UFs are not applied to chronic toxicity values. The selected toxicity value is usually the lowest EC50, NOEC or NOEL from a life-cycle test; test species are generally Chironomus or Daphnia species.
- Footnote 8
-
Non-vascular Plant ALRV = Toxicity value x UF. UF = 0.5 for LC50, EC50 and IC50 values; no UF is applied to NOEC and HC5 values. The selected toxicity value is generally the lowest endpoint in a standardized algae toxicity test.
- Footnote 9
-
Vascular Plant ALRV = Toxicity value x UF. UF = 0.5 for EC50 and IC50 values; no UF is applied to NOEC and HC5 values. The selected toxicity value is generally the lowest endpoint in a standardized plant toxicity test; the test species is usually Lemna gibba.
Abbreviations:
- LC50
- 50 percent lethal concentration
- LD50
- 50 percent lethal dose
- EC50
- 50 percent effect concentration
- IC50
- 50 percent inhibition concentration
- NOAEC
- no observed adverse effects concentration
- NOEL
- no observed effect level
- NOEC
- no observed effect concentration
- HC5
- 5 percent hazard concentration
- UF
- uncertainty factor
- µg/L
- microgram per liter
For additional information on the abbreviated terms visit the glossary of terms for environmental water monitoring for pesticides
| Date | Change |
|---|---|
| May 2024 | New additions to the ALRV table: Desmedipham, Fenazaquin, Florpyrauxifen-benzyl, Florylpicoxamid, Fluazaindolizine, Ipflufenoquin, Methamidophos, Pyraziflumid. Changes to ALRVs based on updated decisions and corrections: Acrolein, Bicyclopyrone, Boric acid, Carbaryl, Clodinafop-propargyl, Cymoxanil, Diazinon, Dichlorvos, Difenoconazole, Dimethoate, Dithiopyr, EPTC, Ethephon, Etofenprox, Fenamidone, Flucarbazone, Fludioxonil, Flutianil, Fluxapyroxad, Fomsafen, Foramsulfuron, Formetanate hydrochloride, Hexazinone, Imazapyr, Iodosulfuron-methyl-sodium, Ipconazole, Kresoxim-methyl, Lambda-cyhalothrin, Malathion, Mesosulfuron-methyl, Metconazole, Methoxyfenozide, Naled, Pentachlorophenol, Phosmet, Picarbutrazox, Prohexadione-calcium, Prothioconazole, Pyraflufen-ethyl, Pyrethrins, Pyridate, Pyriproxyfen, Quizalofop-P-ethyl, Tiafenacil, Trifludimoxazin, Triticonazole, Zoxamide. Minor name changes to align with Open Data: Ethametsulfuron-methyl, Metsulfuron-methyl, Thifensulfuron-methyl, Tribenuron-methyl |
| July 2023 | Changes were made to the ALRV table to standardize presentation of the ALRVs and to simplify use for water monitoring data analysis. |
| March 2023 | A change was made to correct typographical errors for ALRVs for imidacloprid and malathion. |
Related links
- PMRA Guidance Document, A Framework for Risk Assessment and Risk Management of Pest Control Products
- Decisions and updates
- Aquatic Life Benchmarks and Ecological Risk Assessments for Registered Pesticides | US EPA
- Human Health Reference Values (HHRVs)
- Glossary of terms for environmental water monitoring for pesticides
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