National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Iodomethane
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Iodomethane is an industrial chemical with a wide range of applications, including manufacture of pharmaceuticals and fire extinguisher products; it is also used as a pesticide/herbicide and occurs naturally in seafood.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 3 |
- |
- |
| Water utilities | 4 |
- |
- |
| People Served | 216,160 |
- |
- |
Health Concerns for Iodomethane:
- Cancer
- Neurotoxicity
- Organ system toxicity (non-reproductive)
- Developmental/reproductive toxicity
- Occupational hazards
- Irritation (skin, eyes, or lungs)
- Persistence and bioaccumulation
- Ecotoxicology
Iodomethane Exposure by State
Water utilities in 3 states have reported detecting Iodomethane in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with Iodomethane contamination | |
|---|---|---|
| Systems | Population | |
| Delaware | 1 | 201,000 |
| New Jersey | 1 | 14,000 |
| Texas | 2 | 1,160 |
| Total | 4 | 216,160 |
The Most Polluted Communities
4 water utilities reported detecting Iodomethane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Iodomethane level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | City of Mount Calm Mount Calm, TX | 447 | 1 of 2 | 1 ppb (0 to 2 ppb) |
| 2 | South River W Dept South River, NJ | 14,000 | 1 of 3 | 0.83 ppb (0 to 2.5 ppb) |
| 3 | Artesian Water Company Newark, DE | 201,000 | 1 of 131 | 0.05 ppb (0 to 6.6 ppb) |
| 4 | Village of Surfside Beach Freeport, TX | 713 | 1 of 5 | 0.04 ppb (0 to 0.2 ppb) |
Testing Summary for Iodomethane
| Are tests routinely required for Iodomethane by federal law? | No |
| Water suppliers reporting tests for Iodomethane (2004-2009): | 3,117 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2009): | 0.4 per year |
Cancer
| Type of concern: | Reference: |
| Possible human carcinogen | California EPA Proposition 65 |
| Cancer - strong evidence | Proposition 65 List of Carcinogens |
| Limited evidence of carcinogenicity | European Union - Classification & Labelling |
| Possible carcinogen | Environment Canada Domestic Substance List |
| 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®- Environmental Mutagenesis 1985 |
| One or more in vitro tests on mammalian cells show positive mutation results | RTECS®- International Journal of Cancer 1977 |
| One or more in vitro tests on mammalian cells show positive mutation results | RTECS®- Mutation Research 1984 |
| One or more in vitro tests non-mammalian cells show positive mutation results | RTECS®- JNCI, Journal of the National Cancer Institute 1979 |
| One or more in vitro tests non-mammalian cells show positive mutation results | RTECS®- Archives of Toxicology 1980 |
| Cancer - not classifiable/not likely to be human carcinogen | Int'l Agency for Research on Cancer (IARC) - Carcinogens |
Neurotoxicity
| Type of concern: | Reference: |
| Strong evidence of human neurotoxicity | Chemicals known to be neurotoxic to humans |
| nervous system - weight of evidence unknown/unassessed/unreview: published lit review or major tox study | National Library of Medicine HazMap |
Organ system toxicity (non-reproductive)
| Type of concern: | Reference: |
| Known human lung and skin toxicant | European Union - Classification & Labelling |
| Known human respiratory toxicant | EPA Hazardous Air Pollutants |
| Classified as a high human health priority | Environment Canada Domestic Substance List |
| One or more animal studies show sense organ effects at very low doses | RTECS®- National Technical Information Service 0629 |
| Classified as expected to be toxic or harmful | Environment Canada Domestic Substance List |
| Classified as toxic or harmful | European Union - Classification & Labelling |
| Limited evidence of gastrointestinal or liver toxicity | National Library of Medicine HazMap |
| Limited evidence of respiratory toxicity | US EPA, Air Risk Information Support Center |
| Limited evidence of kidney toxicity | US EPA, Air Risk Information Support Center |
| Limited evidence of sense organ toxicity | US EPA, Air Risk Information Support Center |
| One or more animal studies show toxic via inhalation 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 |
Developmental/reproductive toxicity
| Type of concern: | Reference: |
| Human nervous system toxicant - moderate evidence | Chemicals known to be neurotoxic to humans |
Occupational hazards
| Type of concern: | Reference: |
| Allowed workplace exposures restricted to low doses | European Union - Classification & Labelling |
| Allowed workplace exposures restricted to moderate doses | RTECS®- TLV/BEI,2007 |
| Allowed workplace exposures restricted to high doses | RTECS®- MSHA STANDARD-air: 3,166,1971 |
| Allowed workplace exposures restricted to high doses | RTECS®- OSHA PEL (Gen Indu): 29,1910 1994 |
| Allowed workplace exposures restricted to high doses | RTECS®- OSHA PEL (Construc): 29,1926 1994 |
| Allowed workplace exposures restricted to high doses | RTECS®- OSHA PEL (Shipyard): 29,1915 1993 |
| Allowed workplace exposures restricted to high doses | RTECS®- OSHA PEL (Fed Cont): 41,50-204 1994 |
Irritation (skin, eyes, or lungs)
| Type of concern: | Reference: |
| Classified as irritant | European Union - Classification & Labelling |
| Human skin irritant - moderate evidence | National Library of Medicine HazMap |
| One or more animal studies show skin irritation at very low doses | RTECS®- National Technical Information Service 0629 |
| One or more animal studies show skin irritation at moderate doses | RTECS®- British Journal of Industrial Medicine 1950 |
Persistence and bioaccumulation
| Type of concern: | Reference: |
| Not suspected to be bioaccumulative | Environment Canada Domestic Substance List |
Ecotoxicology
| Type of concern: | Reference: |
| Not suspected to be an environmental toxin | 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 & Labelling | METHYL IODIDE | •Limited evidence of a carcinogenic effect •Limited evidence of a carcinogenic effect •Harmful •Harmful in contact with skin •Toxic •Toxic by inhalation and ingestion •Irritant (eyes, skin, or lungs) •Irritating to respiratory system and skin |
| Environment Canada Domestic Substance List | METHANE, IODO- | •This chemical was deemed a high human health priority and was flagged by CEPA for further attention. The chemical is suspected to be carcinogenic and persistent. |
| European Union - Banned or Restricted in Cosmetics | IODOMETHANE | •Prohibited in EU cosmetics: must not form part of the composition of cosmetic products |
| EPA Hazardous Air Pollutants | METHYL IODIDE (IODOMETHANE) | •Hazardous air pollutant under Clean Air Act |
| National Library of Medicine HazMap | METHYL IODIDE | •Skin Designation (ACGIH) - Danger of cutaneous absorption (ACGIH): Yes; •Dermatotoxin: Skin Burns; •Hepatotoxin: Hepatotoxin, Secondary; •Neurotoxin: Other CNS Neurotoxin; •PEL (OSHA) - Permissible exposure limit (OSHA): 5 ppm; •TIH - Toxic inhalation hazard (North American Emergency Response Guide): Yes; •LC50 - Lethal concentration in 50% of animals tested: 1550 ppm; •TLV (ACGIH) - Threshold limit value (ACGIH): 2 ppm; •IDLH (NIOSH) - Immediately Dangerous to Life or Health: 100 ppm; |
| Int'l Agency for Research on Cancer (IARC) - Carcinogens | METHYL IODIDE | •IARC Group 3 (no cancer link) |
| EPA Toxic Release Inventory PBTs | IODOMETHANE | •Toxic, U.S. Environmental Protection Agency Toxics Release Inventory programs |
| California EPA Proposition 65 | METHYL IODIDE | •Carcinogen: California Proposition 65 |
| US EPA, Air Risk Information Support Center | METHYL IODIDE | •Respiratory toxicity hazards: suspected |
| US EPA, Air Risk Information Support Center | METHYL IODIDE | •Kidney toxicity hazards: suspected |
| US EPA, Air Risk Information Support Center | METHYL IODIDE | •Skin or sense organ toxicity hazards: suspected |
| Proposition 65 List of Carcinogens | METHYL IODIDE | •Cancer hazards: recognized |
| RTECS®- TLV/BEI,2007 | METHYL IODIDE | • occupationally related - ACGIH TLV (human TWA) |
| RTECS®- Archives of Toxicology 1980 | METHYL IODIDE | • mutagenic - Positive mutation assay: Mutation in Micro-organism (Escherichia coli ) • mutagenic - Positive mutation assay: DNA Damage (Escherichia coli ) |
| RTECS®- British Journal of Industrial Medicine 1950 | METHYL IODIDE | • skin - Primary skin irritant ( human ) |
| RTECS®- Environmental Mutagenesis 1985 | METHYL IODIDE | • mutagenic - Positive mutation assay: Mutation in Mammalian Somatic Cells (mouse lym) |
| RTECS®- International Journal of Cancer 1977 | METHYL IODIDE | • mutagenic - Positive mutation assay: Morphological Transform (hamster emb) |
| RTECS®- JNCI, Journal of the National Cancer Institute 1979 | METHYL IODIDE | • mutagenic - Positive mutation assay: Mutation in Micro-organism (Salmonella typhimurium ) • mutagenic - Positive mutation assay: DNA repair (Escherichia coli ) |
| RTECS®- JNCI, Journal of the National Cancer Institute 1979 | METHYL IODIDE | • mutagenic - Positive mutation assay: Gene Conversion and Mitotic Recombination (Saccharomyces cerevisiae ) |
| RTECS®- MSHA STANDARD-air: 3,166,1971 | METHYL IODIDE | • occupationally related - MSHA STANDARD-air (human TWA) |
| RTECS®- Mutation Research 1984 | METHYL IODIDE | • mutagenic - Positive mutation assay: Mutation in Mammalian Somatic Cells (hamster ovr) |
| RTECS®- Mutation Research 1979 | METHYL IODIDE | • mutagenic - Positive mutation assay: Mutation in Micro-organism (mouse lym) |
| RTECS®- National Technical Information Service 0629 | METHYL IODIDE | • sense organ - Primary eye irritant (rabbit ) • skin - Primary skin irritant (rabbit ) |
| RTECS®- OSHA PEL (Construc): 29,1926 1994 | METHYL IODIDE | • occupationally related - OSHA PEL (Construc) (human TWA) |
| RTECS®- OSHA PEL (Fed Cont): 41,50-204 1994 | METHYL IODIDE | • occupationally related - OSHA PEL (Fed Cont) (human TWA) |
| RTECS®- OSHA PEL (Gen Indu): 29,1910 1994 | METHYL IODIDE | • occupationally related - OSHA PEL (Gen Indu) (human TWA) |
| RTECS®- OSHA PEL (Shipyard): 29,1915 1993 | METHYL IODIDE | • occupationally related - OSHA PEL (Shipyard) (human TWA) |
references
| government/industry list/academic study | reference |
| European Union - Classification & Labelling | CPS&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. |
| Environment Canada Domestic Substance List | EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry. |
| European Union - Banned or Restricted in Cosmetics | EC (European Commission of the European Union). 1999-2006. Enterprise Directorate-General Pharmaceuticals and Cosmetics. The rules governing cosmetic products in the European Union, Volume 1, "Cosmetics legislation." |
| EPA Hazardous Air Pollutants | EPA (U.S. Environmental Protection Agency). 2005. Office of Air. The 112(b)1 Hazardous Air Pollutants List (as modified). Last modified: 12 Dec 2005. |
| National Library of Medicine HazMap | NLM (National Library of Medicine). 2006. HazMap — Occupational Exposure to Hazardous Agents. |
| Int'l Agency for Research on Cancer (IARC) - Carcinogens | IARC (International Agency for Research on Cancer). 2008. Overall Evaluations of Carcinogenicity to Humans, as evaluated in IARC Monographs Volumes 1-99 (a total of 935 agents, mixtures and exposures). |
| EPA Toxic Release Inventory PBTs | EPA (U.S. Environmental Protection Agency). 1999. Toxics Release Inventory Program. PBT Chemical Rule. |
| California EPA Proposition 65 | California EPA (California Environmental Protection Agency). 9/2008. Office of Environmental Health Hazard Assessment. Safe Drinking Water and Toxic Enforcement Act of 1986. Chemicals known to the State to cause cancer or reproductive toxicity. |
| Scorecard.org Toxicity Information | US EPA, Air Risk Information Support Center. Health Effects Notebook for Hazardous Air Pollutants. http://www.epa.gov/ttnatw01/hlthef/hapindex.html |
| Scorecard.org Toxicity Information | US EPA, Air Risk Information Support Center. Health Effects Notebook for Hazardous Air Pollutants. http://www.epa.gov/ttnatw01/hlthef/hapindex.html |
| Scorecard.org Toxicity Information | US EPA, Air Risk Information Support Center. Health Effects Notebook for Hazardous Air Pollutants. http://www.epa.gov/ttnatw01/hlthef/hapindex.html, A Relational Database of Hazardous Chemicals and Occupational Diseases. Browse Haz-Map by Adverse Effects http://hazmap.nlm.nih.gov/hazmapadv.html |
| Scorecard.org Toxicity Information | Proposition 65 List of Carcinogens (July 2004) can be obtained from http://www.oehha.ca.gov/prop65/prop65_list/Newlist.html. |
| RTECS®- TLV/BEI,2007 | RTECS®- TLV/BEI,2007 |
| RTECS®- Archives of Toxicology 1980 | RTECS®- Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 46,277,1980 |
| RTECS®- British Journal of Industrial Medicine 1950 | RTECS®- British Journal of Industrial Medicine. (British Medical Journal, Box 560B, Kennebunkport, ME 04046) V.1- 7,122,1950 |
| RTECS®- Environmental Mutagenesis 1985 | RTECS®- Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For publisher information, see EMMUEG. 7,523,1985 |
| RTECS®- International Journal of Cancer 1977 | RTECS®- International Journal of Cancer. (International Union Against Cancer, 3 rue du Conseil- General, 1205 Geneva, Switzerland) V.1- 19,642,1977 |
| RTECS®- JNCI, Journal of the National Cancer Institute 1979 | RTECS®- JNCI, Journal of the National Cancer Institute. (Washington, DC) V.61-79, 1978-87. For publisher information, see JNCIEQ. 62,873,1979 |
| RTECS®- JNCI, Journal of the National Cancer Institute 1979 | RTECS®- JNCI, Journal of the National Cancer Institute. (Washington, DC) V.61-79, 1978-87. For publisher information, see JNCIEQ. 62,901,1979 |
| RTECS®- MSHA STANDARD-air: 3,166,1971 | RTECS®- MSHA STANDARD-air: 3,166,1971 |
| RTECS®- Mutation Research 1984 | RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 136,137,1984 |
| RTECS®- Mutation Research 1979 | RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 59,61,1979 |
| RTECS®- National Technical Information Service 0629 | RTECS®- National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. OTS0570629 |
| RTECS®- OSHA PEL (Construc): 29,1926 1994 | RTECS®- OSHA PEL (Construc): 29,1926.55,1994 |
| RTECS®- OSHA PEL (Fed Cont): 41,50-204 1994 | RTECS®- OSHA PEL (Fed Cont): 41,50-204.50,1994 |
| RTECS®- OSHA PEL (Gen Indu): 29,1910 1994 | RTECS®- OSHA PEL (Gen Indu): 29,1910.1000,1994 |
| RTECS®- OSHA PEL (Shipyard): 29,1915 1993 | RTECS®- OSHA PEL (Shipyard): 29,1915.1000,1993 |
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