Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Hughson, City Of

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019N/A00N/A
2020N/A00N/A
2021ND60ND
2022N/A00N/A
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
2018-08-15CA5010008_005_005-201808151150ND
2018-08-15CA5010008_014_014-201808150910ND
2018-08-15CA5010008_003_003-201808151046ND
2021-07-20CA5010008_014_014-202107201345ND
2021-07-20CA5010008_003_003-202107200910ND
2021-07-20CA5010008_005_005-202107200920ND
2021-07-20CA5010008_014_014-202107201345ND
2021-07-20CA5010008_003_003-202107200910ND
2021-07-20CA5010008_005_005-202107200920ND
2023-05-18CA5010008_016_016-202305181354ND
2023-05-18CA5010008_017_017-202305181335ND