Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Pulaski County Public Water Supply District 2

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.

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND90ND
2019ND40ND
2020ND40ND
2021ND90ND
2022ND40ND
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
2018-01-10AD12046ND
2018-03-05AD17401ND
2018-05-03AD18576ND
2018-06-04AD19098ND
2018-06-04AD19099ND
2018-06-04AD19100ND
2018-06-04AD19101ND
2018-07-11AD29485ND
2018-10-12AD35058ND
2019-01-08AD38366ND
2019-04-08AD46655ND
2019-07-12AD52707ND
2019-10-18AD57365ND
2020-01-13AD60686ND
2020-04-152004208ND
2020-07-172011559ND
2020-10-222016607ND
2021-01-112020177ND
2021-02-222101290ND
2021-02-222101292ND
2021-02-222101294ND
2021-02-222101296ND
2021-02-222101298ND
2021-04-192103691ND
2021-07-122113558ND
2021-10-252118127ND
2022-01-102121597ND
2022-04-112204306ND
2022-07-112214666ND
2022-10-122219661ND
2023-01-092223200ND
2023-04-112303410ND
2023-07-132311563ND