Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Aqua Pa Bristol

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND30ND
2020ND50ND
2021ND50ND
2022ND60ND
2023ND20ND

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
2018-02-02AF75113ND
2018-02-22AF76987ND
2019-02-01AG07157ND
2019-03-07AG10696ND
2019-04-12AG14108ND
2020-01-1021483491.00ND
2020-04-0322002028.00ND
2020-04-0922002049.00ND
2020-07-1022586048.00ND
2020-10-2323162733.00ND
2021-01-1523692362.00ND
2021-02-0523869136.00ND
2021-05-1424417526.00ND
2021-07-0924807884.00ND
2021-10-0825383936.00ND
2022-01-1425922420.00ND
2022-02-0326099348.00ND
2022-04-0126443319.00ND
2022-04-0826443298.00ND
2022-07-0827016785.00ND
2022-11-0827804064.00ND
2023-01-2728152924.00ND
2023-02-1628330635.00ND