National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Endosulfan II
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Endosulfan II (beta) is an isomer of the insecticide endosulfan used on food crops such as grains, tea, fruits, vegetables, on nonfood crops, and as a wood preservative; it is bioaccumulative, persistent, and a potential endocrine disruptor.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 1 |
- |
- |
| Water utilities | 1 |
- |
- |
| People Served | 201,000 |
- |
- |
Health Concerns for Endosulfan II:
Endosulfan II Exposure by State
Water utilities in 1 states have reported detecting Endosulfan II in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with Endosulfan II contamination | |
|---|---|---|
| Systems | Population | |
| Delaware | 1 | 201,000 |
| Total | 1 | 201,000 |
The Most Polluted Communities
1 water utilities reported detecting Endosulfan II in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Endosulfan II level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Artesian Water Company Newark, DE | 201,000 | 1 of 83 | < 0.01 ppb (0 to 0.02 ppb) |
Health Based Limits for Endosulfan II
| Standard | Description | Level |
|---|---|---|
| EPA Human Health Water Quality Criteria | Water quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency. | 62 ppb |
Testing Summary for Endosulfan II
| Are tests routinely required for Endosulfan II by federal law? | No |
| Water suppliers reporting tests for Endosulfan II (2004-2009): | 1,081 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2009): | 0.3 per year |
Endocrine disruption
| Type of concern: | Reference: |
| Human disruptor - moderate evidence | European Commission on Endocrine Disruption |
| Limited evidence of wildlife and the environment disruption | European Commission on Endocrine Disruption |
Persistence and bioaccumulation
| Type of concern: | Reference: |
| Persistent, bioaccumulative in wildlife | EPA PBTs - Waste Minimization Program (RCRA) |
Cancer
| Type of concern: | Reference: |
| One or more in vitro tests on mammalian cells show positive mutation results | RTECS®- Toxicology 2004 |
| One or more in vitro tests on mammalian cells show positive mutation results | RTECS®- EHP, Environmental Health Perspectives 2000 |
| One or more in vitro tests on mammalian cells show positive mutation results | RTECS®- Environmental and Molecular Mutagenesis 2006 |
| One or more in vitro tests non-mammalian cells show positive mutation results | RTECS®- Environmental and Molecular Mutagenesis 2006 |
Government, industry, academic studies and classifications
| government/industry list/academic study | appears on list as | classification(s) |
| EPA PBTs - Waste Minimization Program (RCRA) | ENDOSULFAN, BETA | •Persistent, bioaccumulative toxicant - Resource Conservation and Recovery Act, priority chemical for voluntary waste/emission reductions |
| European Commission on Endocrine Disruption | ENDOSULFAN (BETA) | HH-CAT2;WF-CAT2 |
| RTECS®- EHP, Environmental Health Perspectives 2000 | 5-NORBORNENE-2,3-DIMETHANOL, 1,4,5,6,7,7-HEXACHLORO-, CYCLIC SULFITE, EXO- | • mutagenic - Positive mutation assay: DNA Damage ( human lvr) |
| RTECS®- Environmental and Molecular Mutagenesis 2006 | 5-NORBORNENE-2,3-DIMETHANOL, 1,4,5,6,7,7-HEXACHLORO-, CYCLIC SULFITE, EXO- | • mutagenic - Positive mutation assay: Mutation in Micro-organism (Salmonella typhimurium ) • mutagenic - Positive mutation assay: DNA Damage ( human lym) |
| RTECS®- Toxicology 2004 | 5-NORBORNENE-2,3-DIMETHANOL, 1,4,5,6,7,7-HEXACHLORO-, CYCLIC SULFITE, EXO- | • mutagenic - Positive mutation assay: Micronucleus test ( human lvr) • mutagenic - Positive mutation assay: Sister Chromatid Exchange ( human lvr) |
references
| government/industry list/academic study | reference |
| EPA PBTs - Waste Minimization Program (RCRA) | EPA (U.S. Environmental Protection Agency). 1998. Resource Conservatin and Recovery Act (RCRA) Waste Minimization Program - priority chemicals for elimination or reduction. |
| European Commission on Endocrine Disruption | EU (European Union)- Strategy for Endocrine Disrupters 2007. Commision on endocrin disruption requested by the European Parliament in 1998. |
| RTECS®- EHP, Environmental Health Perspectives 2000 | RTECS®- EHP, Environmental Health Perspectives. (U.S. Government Printing Office, Supt of Documents, Washington, DC 20402) No.1- -,559,2000 |
| RTECS®- Environmental and Molecular Mutagenesis 2006 | RTECS®- Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 47,682,2006 |
| RTECS®- Toxicology 2004 | RTECS®- Toxicology. (Elsevier Scientific Pub. Ireland, Ltd., POB 85, Limerick, Ireland) V.1- 198,315,2004 |
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