Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Paw Penn 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.

 

56

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND100ND
2020ND110ND
2021ND80ND
2022ND80ND
2023ND110ND

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
2018-01-1138161501ND
2018-01-1138161101ND
2018-01-1138161401ND
2018-01-1138161301ND
2018-01-1138161201ND
2018-04-1139072601ND
2018-07-1640207301ND
2018-10-1741961701ND
2019-01-0942499201ND
2019-01-0942499601ND
2019-01-0942499501ND
2019-01-0942499401ND
2019-01-0942499301ND
2019-04-0143658101ND
2019-07-0845016101ND
2019-07-1545716201ND
2019-10-0746831501ND
2019-10-3143999801ND
2020-01-0621542684.00ND
2020-01-0621542532.00ND
2020-01-0621542642.00ND
2020-01-0621542600.00ND
2020-01-0621542621.00ND
2020-01-0621542553.00ND
2020-01-0621542574.00ND
2020-01-1521542663.00ND
2020-05-0622261489.00ND
2020-08-1722843886.00ND
2020-10-0823224107.00ND
2021-01-1423754055.00ND
2021-01-1423754034.00ND
2021-01-1423754097.00ND
2021-01-1423754076.00ND
2021-04-1424290655.00ND
2021-04-2124290984.00ND
2021-07-0124873767.00ND
2021-10-0625448154.00ND
2022-01-0525982970.00ND
2022-01-0525982894.00ND
2022-01-0525982926.00ND
2022-01-0525982949.00ND
2022-01-0525982875.00ND
2022-04-0626506755.00ND
2022-07-0527082960.00ND
2022-10-0627684627.00ND
2023-01-0528212786.00ND
2023-01-0528212885.00ND
2023-01-0528212864.00ND
2023-01-0528212812.00ND
2023-01-0528212833.00ND
2023-01-0528212773.00ND
2023-01-0528212909.00ND
2023-04-1328749303.00ND
2023-06-0729155730.00ND
2023-07-2029346694.00ND
2023-10-1229928194.00ND