The Power of Information

National Drinking Water Database


National Drinking Water Database - Chemical Contaminants

Diazinon (Spectracide)


Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.

Diazinon is an herbicide for various household and agricultural uses.

 
Detected
Found above
health guidelines
Found above
legal limit
States
1
1
-
Water utilities
2
1
-
People Served
104,414
1,000
-

Health Concerns for Diazinon (Spectracide):


Diazinon (Spectracide) Exposure by State

Water utilities in 1 states have reported detecting Diazinon (Spectracide) in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with Diazinon (Spectracide) contaminationWater suppliers reporting Diazinon (Spectracide) above health-based limits
SystemsPopulationSystemsPopulation
California2104,41411,000
Total2104,41411,000

The Most Polluted Communities

2 water utilities reported detecting Diazinon (Spectracide) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Diazinon (Spectracide) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Fresno Co Waterworks Dist 41
Fresno, CA
1,0001 of 821.13 ppb
(0 to 169 ppb)
2Rancho California Water District
Temecula, CA
103,4141 of 37< 0.01 ppb
(0 to 0.28 ppb)

Health Based Limits for Diazinon (Spectracide)

StandardDescriptionLevel
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.1 ppb
Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.1 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.7 ppb
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.20 ppb
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.20 ppb

Testing Summary for Diazinon (Spectracide)

Are tests routinely required for Diazinon (Spectracide) by federal law?No
Water suppliers reporting tests for Diazinon (Spectracide) (2004-2009):1,963 of 47,576
Average testing rate for water supplier reporting tests (2004-2009):0.4 per year

Neurotoxicity

Type of concern: Reference:
Strong evidence of human neurotoxicity Chemicals known to be neurotoxic to humans
Limited evidence of nervous system toxicity CHE Toxicant and Disease Database

Allergies/immunotoxicity

Type of concern: Reference:
Human immune and respiratory toxicant or allergen - strong evidence Association of Occupational and Environmental Clinics

Developmental/reproductive toxicity

Type of concern: Reference:
Human reproductive toxicant - moderate evidence CHE Toxicant and Disease Database
Human developmental toxicant - moderate evidence CHE Toxicant and Disease Database
Human nervous system toxicant - moderate evidence Chemicals known to be neurotoxic to humans
Limited evidence of nervous system toxicity CHE Toxicant and Disease Database
Limited evidence of developmental toxicity US EPA, 1788
Limited evidence of reproductive toxicity Frazier , L, 1998

Occupational hazards

Type of concern: Reference:
Allowed workplace exposures restricted to very low doses RTECS®- TLV/BEI,2007
Allowed workplace exposures restricted to low doses European Union - Classification & Labelling

Cancer

Type of concern: Reference:
Cancer - limited evidence CHE Toxicant and Disease Database
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Mutation Research 1997
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Bibliotheca Haematologica (Basel) 1971
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Tsitologiya 1976
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- JAT, Journal of Applied Toxicology 1981
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Environmental and Molecular Mutagenesis 1988
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Mutation Research 1979
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Mutation Research 2000
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Mutation Research 2005
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Toxicologist 2004
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Reproductive Toxicology 2006
One or more in vitro tests on microorganisms show positive mutation results RTECS®- Science of the Total Environment 1988
One or more in vitro tests on microorganisms show positive mutation results RTECS®- Mutation Research 1983

Organ system toxicity (non-reproductive)

Type of concern: Reference:
Possible human hematologic toxicant CHE Toxicant and Disease Database
One or more animal studies show sense organ effects at very low doses RTECS®- Ciba-Geigy Toxicology Data/Indexes 1977
Classified as expected to be toxic or harmful Environment Canada Domestic Substance List
Classified as toxic or harmful European Union - Classification & Labelling
One or more animal studies show classified as toxic effects at moderate doses (low dose studies may be unavailable for this ingredient) National Library of Medicine HazMap
One or more animal studies show classified as toxic effects at moderate doses (low dose studies may be unavailable for this ingredient) EPA Toxic Release Inventory PBTs

Endocrine disruption

Type of concern: Reference:
Limited evidence of wildlife and the environment disruption European Commission on Endocrine Disruption

Irritation (skin, eyes, or lungs)

Type of concern: Reference:
One or more animal studies show skin irritation at low doses RTECS®- Ciba-Geigy Toxicology Data/Indexes 1977

Ecotoxicology

Type of concern: Reference:
Wildlife and environmental toxicity European Union - Classification & Labelling
Suspected to be an environmental toxin and be persistent or bioaccumulative Environment Canada Domestic Substance List
Suspected to be an environmental toxin Environment Canada Domestic Substance List

Persistence and bioaccumulation

Type of concern: Reference:
Not suspected to be bioaccumulative Environment Canada Domestic Substance List



Government, industry, academic studies and classifications

government/industry list/academic study appears on list as classification(s)
European Union - Classification & LabellingDIAZINON•Harmful
•Harmful if swallowed
•Dangerous for the environment
•Very toxic to aquatic organisms
Association of Occupational and Environmental ClinicsDIAZINON• Asthmagen
Environment Canada Domestic Substance ListPHOSPHOROTHIOIC ACID, O,O-DIETHYL O-[6-METHYL-2-(1-METHYLETHYL)-4-PYRIMIDINYL] ESTER•This chemical was flagged for further attention by CEPA due to suspected aquatic toxicity and persistence.
European Commission on Endocrine DisruptionDIAZINONHH-CAT3;WF-CAT2
National Library of Medicine HazMapDIAZINON•Skin Designation (ACGIH) - Danger of cutaneous absorption (ACGIH): Yes;
•Restricted - Regulations that have banned or restricted the use of the agent: Use on sod farms and golf courses cancelled by EPA in 1988; [EXTOXNET];
•Other Poison: Organophosphate;
•TLV (ACGIH) - Threshold limit value (ACGIH): 0.01 mg/m3, inhalable fraction(vapor and aerosol);
•MAK - Maximum Allowable Concentration (Federal Republic of Germany): 0.1 mg/m3, inhalable fraction;
EPA Toxic Release Inventory PBTsO,ODIETHYL O[6METHYL2(1METHYLETHYL)4PYRIMIDINYL] ESTERPHOSPHOROTHIOIC ACID•Toxic, U.S. Environmental Protection Agency Toxics Release Inventory programs
US EPA, 1788DIAZINON•Developmental toxicity hazards: suspected
Frazier , L, 1998DIAZINON•Reproductive toxicity hazards: suspected
RTECS®- TLV/BEI,2007DIAZINON• occupationally related - ACGIH TLV (human TWA)
RTECS®- Bibliotheca Haematologica (Basel) 1971DIAZINON• mutagenic - Positive mutation assay: other mutation test systems ( human lym)
RTECS®- Ciba-Geigy Toxicology Data/Indexes 1977DIAZINON• sense organ - Primary eye irritant (rabbit )
• skin - Primary skin irritant (rabbit )
RTECS®- Environmental and Molecular Mutagenesis 1988DIAZINON• mutagenic - Positive mutation assay: Mutation in Mammalian Somatic Cells (mouse lym)
RTECS®- JAT, Journal of Applied Toxicology 1981DIAZINON• mutagenic - Positive mutation assay: Morphological Transform (rat emb)
RTECS®- Mutation Research 1983DIAZINON• mutagenic - Positive mutation assay: Sister Chromatid Exchange (other fish mul)
RTECS®- Mutation Research 1997DIAZINON• mutagenic - Positive mutation assay: Micronucleus test ( human lym)
RTECS®- Mutation Research 2000DIAZINON• mutagenic - Positive mutation assay: Sister Chromatid Exchange (rat lym)
RTECS®- Mutation Research 2005DIAZINON• mutagenic - Positive mutation assay: Micronucleus test (hamster ovr)
RTECS®- Mutation Research 1979DIAZINON• mutagenic - Positive mutation assay: Cytogenetic Analysis (hamster lng)
RTECS®- Reproductive Toxicology 2006DIAZINON• mutagenic - Positive mutation assay: sperm ( human spr)
RTECS®- Science of the Total Environment 1988DIAZINON• mutagenic - Positive mutation assay: DNA Inhibition (other fish mul)
• mutagenic - Positive mutation assay: other mutation test systems (other fish mul)
RTECS®- Toxicologist 2004DIAZINON• mutagenic - Positive mutation assay: DNA Damage (mouse ipr)
RTECS®- Tsitologiya 1976DIAZINON• mutagenic - Positive mutation assay: Cytogenetic Analysis ( human lym)



references

government/industry list/academic study reference
European Union - Classification & LabellingCPS&Q (Consumer Products Safety & Quality) formely known as ECB (European Chemicals Bureau). 2008. Classification and Labelling: Chemicals: Annex VI of Directive 67/548/EEC through the 31st ATP.
Association of Occupational and Environmental ClinicsAOEC (Association of Occupational and Environmental Clinics). 2009. AEOC exposures codes and asthmagen designation.
Environment Canada Domestic Substance ListEC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
European Commission on Endocrine DisruptionEU (European Union)- Strategy for Endocrine Disrupters 2007. Commision on endocrin disruption requested by the European Parliament in 1998.
National Library of Medicine HazMapNLM (National Library of Medicine). 2006. HazMap — Occupational Exposure to Hazardous Agents.
EPA Toxic Release Inventory PBTsEPA (U.S. Environmental Protection Agency). 1999. Toxics Release Inventory Program. PBT Chemical Rule.
Scorecard.org Toxicity InformationUS EPA. Addition of Certain Chemicals; Toxic Chemical Release Reporting; Community Right to Know. Proposed and Final Rules. 59 Federal Register 1788 (Jan 12, 1994); 59 Federal Register 61432 (November 30, 1994). Summarized in Hazard Information on Toxic Chemicals Added to EPCRA Section 313 Under Chemical Expansion. http://www.epa.gov/tri/chemical/hazard_cx.htm, Jankovic, J. A Screening Method for Occupational Reproductive Health Risk. American Industrial Hygiene Association Journal. 57: 641-649. 1996.
Scorecard.org Toxicity InformationFrazier , L. and M. L. Hage (eds.). Reproductive Hazards of the Workplace, Wiley Europe, 1998. Table 10 (Partial List of Reproductive Toxicants) available at http://www.pharmacy.ohio-state.edu/homepage/safety/chemhygiene_table_repro.pdf.
RTECS®- TLV/BEI,2007RTECS®- TLV/BEI,2007
RTECS®- Bibliotheca Haematologica (Basel) 1971RTECS®- Bibliotheca Haematologica (Basel). (S. Karger AG, Postfach, CH-4009 Basel, Switzerland) No.1- 38(Pt1),344,1971
RTECS®- Ciba-Geigy Toxicology Data/Indexes 1977RTECS®- Ciba-Geigy Toxicology Data/Indexes. (Ciba-Geigy Corp., 556 Morris Ave., Summit, NJ 07901) -,-,1977
RTECS®- Environmental and Molecular Mutagenesis 1988RTECS®- Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 12,85,1988
RTECS®- JAT, Journal of Applied Toxicology 1981RTECS®- JAT, Journal of Applied Toxicology. (John Wiley & Sons Ltd., Baffins Lane, Chichester, W. Sussex PO19 1UD, UK) V.1- 1,190,1981
RTECS®- Mutation Research 1983RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 118,61,1983
RTECS®- Mutation Research 1997RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 388,27,1997
RTECS®- Mutation Research 2000RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 472,85,2000
RTECS®- Mutation Research 2005RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 582,116,2005
RTECS®- Mutation Research 1979RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 66,277,1979
RTECS®- Reproductive Toxicology 2006RTECS®- Reproductive Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.1- 22,508,2006
RTECS®- Science of the Total Environment 1988RTECS®- Science of the Total Environment. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 76,63,1988
RTECS®- Toxicologist 2004RTECS®- Toxicologist. (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway, Akron, OH 44311) V.1- 1981- 78,426,2004
RTECS®- Tsitologiya 1976RTECS®- Tsitologiya. Cytology. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 18,1490,1976

"RTECS®" is a United States trademark owned and licensed under authority of the U.S. Government, by and through MDL Information Systems, Inc.