Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Aquarion Water Company of Connecticut - Greenwich System

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
2018ND10ND
2019ND20ND
2020ND20ND
2021ND20ND
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
2018-04-02201803873-VOC1ND
2019-04-01201904114-VOC1ND
2019-04-01201904109-VOC1ND
2020-04-06202004726-VOC1ND
2020-04-07202004860-VOC1ND
2021-04-05202104315-VOC1ND
2021-05-10202106584-VOC1ND
2022-04-05202204953-VOC1ND
2022-05-16202207710-VOC1ND
2023-04-03202304838-VOC1ND
2023-06-06202309335-VOC1ND