Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Spring Park

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
2018ND40ND
2019ND60ND
2020ND30ND
2021ND20ND
2022ND30ND
2023ND50ND

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
2018-02-2718B1222-01ND
2018-04-2618D1558-01ND
2018-11-1318K0569-01ND
2018-12-1818L0646-01ND
2019-01-2919A0922-01ND
2019-02-1919B0810-01ND
2019-03-2219C0967-01ND
2019-05-1019E0822-01ND
2019-10-0119J0043-01ND
2019-11-0519K0180-01ND
2020-01-0720A0112-01ND
2020-06-0320F0243-01ND
2020-08-0420H0088-01ND
2021-04-2821D1668-01ND
2021-11-0421K0345-01ND
2022-06-1622F1024-01ND
2022-07-1822G1075-01ND
2022-11-1822K0868-01ND
2023-02-2823C0047-01ND
2023-02-2823C0047-03ND
2023-05-0123E0055-01ND
2023-08-2223H2301-01ND
2023-10-2023J1098-01ND