Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Spinsfield Commons

Monochlorobenzene is used as a solvent for pesticides, a degreasing agent and an intermediate for manufacturing other chemicals. It causes liver and kidney damage in studies of laboratory animals.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND10ND
2020ND10ND
2021ND30ND
2022ND40ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 70 ppb

The EWG Health Guideline of 70 ppb for monochlorobenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL): 100 ppb

The legal limit for monochlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-11-291815101-01ND
2018-11-291804742-01ND
2019-09-171915631-01ND
2020-06-222006-02977-001ND
2021-03-222103-02814-001ND
2021-07-152107-02568-001ND
2021-10-282110-04882-001ND
2022-01-272201-03503-001ND
2022-04-222204-03689-001ND
2022-07-222207-04385-001ND
2022-10-242210-04713-001ND
2023-01-262301-04315-001ND
2023-04-192304-03951-001ND
2023-08-232308-05509-001ND
2023-10-162310-03511-001ND