Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Granton Waterworks

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND10ND
2020ND20ND
2021N/A00N/A
2022N/A00N/A
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
2018-03-121044565ND
2018-05-011052816ND
2018-08-061071715ND
2018-10-081085746ND
2019-01-081100095ND
2020-01-281171151ND
2020-01-281171157ND
2023-05-23CB05432-03ND
2023-06-21CB06958-01ND