Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Bryants Creek Subdivision

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND40ND
2021N/A00N/A
2022N/A00N/A
2023ND240ND

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
2020-02-02AD60441ND
2020-02-02AD60439ND
2020-02-02AD60438ND
2020-02-02AD60440ND
2023-01-312223851ND
2023-01-312223850ND
2023-01-312223849ND
2023-01-312223848ND
2023-02-222301504ND
2023-02-222301501ND
2023-02-222301502ND
2023-02-222301503ND
2023-06-052303971ND
2023-06-052303974ND
2023-06-052303972ND
2023-06-142310835ND
2023-06-202310889ND
2023-06-202310888ND
2023-06-202310890ND
2023-06-202310891ND
2023-09-192312324ND
2023-09-192312323ND
2023-09-202312326ND
2023-09-202312325ND
2023-11-082317365ND
2023-11-082317367ND
2023-11-082317368ND
2023-11-082317366ND