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EWG's Tap Water Database — 2021 UPDATE

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Monochlorobenzene (chlorobenzene)

Lee County WSC

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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND80ND
2016ND80ND
2017ND90ND
2018ND80ND
2019ND70ND

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
2014-02-25AC44508ND
2014-02-25AC44512ND
2014-05-13AC53987ND
2014-05-13AC53985ND
2015-03-04AC82892ND
2015-03-04AC82934ND
2015-03-04AC82932ND
2015-03-04AC82926ND
2015-03-04AC82930ND
2015-03-04AC82924ND
2015-06-17AC96390ND
2015-06-17AC96380ND
2016-01-27AD20413ND
2016-01-27AD20415ND
2016-01-27AD20423ND
2016-01-27AD20427ND
2016-04-12AD32845ND
2016-04-12AD32843ND
2016-09-08AD48502ND
2016-10-31AD55564ND
2017-01-30AD67529ND
2017-01-30AD67533ND
2017-01-30AD67539ND
2017-05-04AD82775ND
2017-05-04AD82781ND
2017-05-04AD82777ND
2017-05-30AD85893ND
2017-07-24AD90394ND
2017-10-04AD99282ND
2018-02-20AE14425ND
2018-02-20AE14429ND
2018-02-20AE14427ND
2018-02-20AE14423ND
2018-05-03AE25072ND
2018-05-03AE25074ND
2018-05-03AE25082ND
2018-07-10AE32804ND
2019-01-15AE49827ND
2019-01-15AE49821ND
2019-01-15AE49825ND
2019-01-15AE49831ND
2019-01-15AE49823ND
2019-04-10AE61828ND
2019-07-26AE76071ND