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EWG's Tap Water Database — 2021 UPDATE

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Monochlorobenzene (chlorobenzene)

Cordele

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND40ND
2016ND30ND
2017ND60ND
2018ND10ND
2019ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-09-22AI54970ND
2014-09-22AI54969ND
2014-09-22AI54968ND
2014-09-22AI54967ND
2014-09-22AI54966ND
2014-09-22AI54965ND
2014-10-14AI57482ND
2015-01-12AI62684ND
2015-04-06AI74200ND
2015-07-13AI82815ND
2015-10-13AI92751ND
2016-01-11AJ04133ND
2016-04-25AJ10763ND
2016-07-12AJ17367ND
2017-04-24AJ53819ND
2017-04-24AJ53818ND
2017-04-24AJ53817ND
2017-04-24AJ53816ND
2017-04-24AJ53815ND
2017-04-24AJ53814ND
2018-03-05AJ85010ND
2019-03-12AK13142ND