Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Stagecoach S/d

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
2018ND40ND
2019ND10ND
2020ND30ND
2021ND10ND
2022ND10ND
2023ND30ND

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
2018-02-21CA18460-01ND
2018-05-16CB03528-01ND
2018-07-19CB08253-01ND
2018-10-16CB14421-01ND
2019-10-30CC15944-01ND
2020-02-18CC20130-01ND
2020-02-18CD02777-01ND
2020-12-03CD13768-01ND
2021-10-13CE12487-01ND
2022-11-29CF12790-01ND
2023-02-03752-2301-1ND
2023-02-08752-2734-1ND
2023-10-3137729_23-61683ND