National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
o-Chlorotoluene
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
o-Chlorotoluene is a solvent and a chemical intermediate used in production of pharmaceuticals, pesticides, synthetic rubber and dyes.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 9 |
- |
- |
| Water utilities | 18 |
- |
- |
| People Served | 62,693 |
- |
- |
Health Concerns for o-Chlorotoluene:
- Occupational hazards
- Organ system toxicity (non-reproductive)
- Ecotoxicology
- Persistence and bioaccumulation
o-Chlorotoluene Exposure by State
Water utilities in 9 states have reported detecting o-Chlorotoluene in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with o-Chlorotoluene contamination | |
|---|---|---|
| Systems | Population | |
| Rhode Island | 2 | 46,105 |
| Massachusetts | 2 | 9,010 |
| Missouri | 1 | 2,779 |
| New York | 2 | 1,905 |
| California | 3 | 1,175 |
| North Carolina | 5 | 1,073 |
| Delaware | 1 | 500 |
| New Hampshire | 1 | 88 |
| Indiana | 1 | 58 |
| Total | 18 | 62,693 |
The Most Polluted Communities
18 water utilities reported detecting o-Chlorotoluene in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average o-Chlorotoluene level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Trail Ridge Condominiums MA | 104 | 1 of 1 | 6.55 ppb (6.55 ppb) |
| 2 | East 40 Mobile Home Park New Palestine, IN | 58 | 1 of 1 | 5.4 ppb (5.4 ppb) |
| 3 | Los Robles Mobile Home Estates Paso Robles, CA | 420 | 1 of 1 | 1.93 ppb (1.93 ppb) |
| 4 | Aquarion Water Company: Millbury Millbury, MA | 8,906 | 1 of 3 | 1.1 ppb (0 to 3.3 ppb) |
| 5 | Rim Rock Water Company Nipomo, CA | 55 | 1 of 2 | 1 ppb (0 to 2 ppb) |
| 6 | Ashebrook Park Gastonia, NC | 239 | 1 of 2 | 0.65 ppb (0 to 1.3 ppb) |
| 7 | Bedford Hills/Taconic Corr. Facilities Bedford Hills, NY | 1,100 | 1 of 1 | 0.5 ppb (0.5 ppb) |
| 8 | Alpine Nursing Home Coventry, RI | 105 | 1 of 2 | 0.35 ppb (0 to 0.7 ppb) |
| 9 | Woonsocket Water Department Woonsocket, RI | 46,000 | 1 of 23 | 0.18 ppb (0 to 4.1 ppb) |
| 10 | Wild Oaks Water Company Rockport, NY | 805 | 1 of 3 | 0.17 ppb (0 to 0.5 ppb) |
Health Based Limits for o-Chlorotoluene
| Standard | Description | Level |
|---|---|---|
| Lifetime health-based limit, non-cancer risk | Concentration 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. | 100 ppb |
| Drinking Water Equivalent Level | A 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. | 700 ppb |
| Children's health-based limit for 1-day exposure | Concentration 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. | 2000 ppb |
| Children's health-based limit for 10-day exposure | Concentration 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. | 2000 ppb |
Testing Summary for o-Chlorotoluene
| Are tests routinely required for o-Chlorotoluene by federal law? | No |
| Water suppliers reporting tests for o-Chlorotoluene (2004-2009): | 20,611 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2009): | 0.6 per year |
Occupational hazards
| Type of concern: | Reference: |
| Allowed workplace exposures restricted to low doses | European Union - Classification & Labelling |
| Allowed workplace exposures restricted to high doses | RTECS®- TLV/BEI,2007 |
Organ system toxicity (non-reproductive)
| Type of concern: | Reference: |
| One or more animal studies show sense organ effects at low doses | RTECS®- National Technical Information Service 2387 |
| Classified as not expected to be potentially toxic or harmful | Environment Canada Domestic Substance List |
Ecotoxicology
| Type of concern: | Reference: |
| Wildlife and environmental toxicity | European Union - Classification & Labelling |
| Not 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 & Labelling | 2-CHLOROTOLUENE; [1] ; 3-CHLOROTOLUENE; [2] ; 4-CHLOROTOLUENE; [3] ; CHLOROTOLUENE [4] | •Harmful •Harmful by inhalation •Dangerous for the environment •Toxic to aquatic organisms |
| Environment Canada Domestic Substance List | BENZENE, 1-CHLORO-2-METHYL- | •This chemical was NOT flagged by CEPA for further attention. The chemical was flagged for suspected persistence. |
| RTECS®- TLV/BEI,2007 | TOLUENE, O-CHLORO- | • occupationally related - ACGIH TLV (human TWA) |
| RTECS®- National Technical Information Service 2387 | TOLUENE, O-CHLORO- | • sense organ - Primary eye irritant (rabbit ) |
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. |
| RTECS®- TLV/BEI,2007 | RTECS®- TLV/BEI,2007 |
| RTECS®- National Technical Information Service 2387 | RTECS®- National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. OTS0572387 |
"RTECS®" is a United States trademark owned and licensed under authority of the U.S. Government, by and through MDL Information Systems, Inc.