Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Oakdale

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020N/A00N/A
2021ND20ND
2022ND50ND
2023ND10ND

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
2018-08-2918H2504-04ND
2018-11-2818K1049-01ND
2019-09-2419I1346-03ND
2019-09-2419I1346-05ND
2021-11-3021K1445-01ND
2021-11-3021K1445-02ND
2022-03-3022C1204-02ND
2022-05-1722E1283-01ND
2022-09-1422I0893-01ND
2022-09-1422I0893-02ND
2022-12-2922L1157-01ND
2023-01-3123A1112-01ND