Advanced testing methods now allow pesticides to be detected in water at very low levels. These small amounts of pesticides detected in drinking water or source water for drinking water do not necessarily indicate a health risk.
The EPA has developed human health benchmarks for 363 pesticides to enable our partners to better determine whether the detection of a pesticide in drinking water or source waters for drinking water may indicate a potential health risk and to help them prioritize monitoring efforts.
The table below includes benchmarks for acute (one-day) and chronic (lifetime) exposures for the most sensitive populations from exposure to pesticides that may be found in surface or ground water sources of drinking water. The table also includes benchmarks for 40 pesticides in drinking water that have the potential for cancer risk. The HHBP table includes pesticide active ingredients for which Health Advisories or enforceable National Primary Drinking Water Regulations (e.g., maximum contaminant levels) have not been developed. View Drinking Water Health Advisories
The United States Geological Survey (USGS) has developed similar levels for pesticides and contaminants other than pesticides in drinking water called Health Based Screening Levels (HBSLs). For more information on HBSLs please visit the USGS website.
or One Day
b,h Chronic or Lifetime
e CancerQuantification, CSF
f,gCarcinogenicHHBP(E-6 to E-4 )(ppb)
|1,2,4-Triazole||288-88-0||0.030 ||300||Children||0.005||35||General Population||-||-|
|2, 4 - DB DMA||2758-42-1||0.600 ||19800||Females 13-49 years||0.030||210||General Population||-||-|
|2, 4 - DBA||94-82-6||0.600 ||19800||Females 13-49 years||0.030||210||General Population||-||-|
|2,4-DP-p Salts & Esters||15165-67-0||0.050 ||500||Children||0.036||252||General Population||-||-|
|2,6-Dichlorobenzamide (BAM)||2008-58-4||0.030 ||990||Females 13-49 years||0.0045||32||General Population||-||-|
|ADBAC||68424-85-1|| -||-||-||0.440||3080||General Population||-||-|
|Abamectin||71751-41-2, 65195-55-3||0.005 ||50||Children||0.0004||3||General Population||-||-|
|Acephate||30560-19-1||0.005 ||50||Children||0.0012||8||General Population||-||-|
|Acequinocyl||57960-19-7|| -||-||-||0.027||189||General Population||-||-|
|Acetamiprid||135410-20-7||0.100 ||1000||Children||0.071||497||General Population||-||-|
|Acetochlor||34256-82-1||0.150 ||1500||Children||0.020||140||General Population||-||-|
|Acibenzolar-methyl||135158-54-2||0.082 ||2706||Females 13-49 years||0.082||541||Females 13-49 years||-||-|
|Aluminum phosphide||20859-73-8||0.018 ||180||Children||0.0113||79||General Population||-||-|