Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Town of Indian Head

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND40ND
2020ND20ND
2021ND10ND
2022ND30ND
2023N/A00N/A

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
2019-01-30E19002363001ND
2019-04-24E19003568001ND
2019-08-06E20000533001ND
2019-10-24E20001596001ND
2020-02-27E20002938001ND
2020-02-27E20002938006ND
2021-11-02E2200072801ND
2022-03-070080020_02_030822430ND
2022-03-070080020_03_030822433ND
2022-03-070080020_07_030822435ND