Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Brookeland Fresh Water Supply District

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND30ND
2022ND20ND
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
2018-12-10Q1850387012ND
2018-12-10Q1850387013ND
2019-07-10Q1943726006ND
2019-07-10Q1943726008ND
2020-04-07Q2014006001ND
2020-04-07Q2014006003ND
2021-09-01Q2123830006ND
2021-09-01Q2123830008ND
2021-12-01Q2133437001ND
2022-02-07Q2203973003ND
2022-08-16Q2224005001ND
2023-06-26Q2324301001ND
2023-06-26Q2324301003ND