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EWG's Tap Water Database — 2019 UPDATE

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Monochlorobenzene (chlorobenzene)

Penn State Univ.

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.

 

167

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND340ND
2013ND280ND
2014ND140ND
2015ND350ND
2016ND270ND
2017ND290ND

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
2012-01-112A11054ND
2012-01-112A11055ND
2012-01-112A11054ND
2012-02-162B16056ND
2012-02-162B16062ND
2012-02-162B16056ND
2012-03-152C15113ND
2012-03-152C15114ND
2012-03-152C15113ND
2012-04-102D10034ND
2012-04-102D10032ND
2012-04-102D10034ND
2012-05-162E16047ND
2012-05-162E16052ND
2012-06-132F13082ND
2012-06-132F13085ND
2012-07-182G18164ND
2012-07-182G18165ND
2012-07-182G18164ND
2012-08-142H14056ND
2012-08-142H14056ND
2012-08-142H14056ND
2012-09-132I14008ND
2012-09-132I14008ND
2012-09-132I14008ND
2012-10-102J11011ND
2012-10-102J11013ND
2012-10-102J11011ND
2012-11-142K14103ND
2012-11-142K14103ND
2012-11-142K14103ND
2012-12-122L12132ND
2012-12-122L12141ND
2012-12-122L12132ND
2013-01-163A16080ND
2013-01-163A16077ND
2013-02-133B13070ND
2013-02-133B13069ND
2013-03-143C14062ND
2013-03-143C14067ND
2013-04-163D16078ND
2013-04-163D16079ND
2013-05-143E14110ND
2013-05-143E14111ND
2013-06-193F19020ND
2013-06-193F19038ND
2013-06-283F28065ND
2013-07-163G16031ND
2013-07-163G16034ND
2013-08-143H14065ND
2013-08-143H14088ND
2013-09-183I18061ND
2013-09-183I18062ND
2013-09-183I18061ND
2013-10-163J16032ND
2013-10-163J16040ND
2013-10-163J16032ND
2013-11-193K19048-06ND
2013-11-193K19040-06ND
2013-12-123L12046-07ND
2013-12-123L12104-06ND
2013-12-123L12046-06ND
2014-01-234A23025-07ND
2014-01-234A23033-06ND
2014-01-234A23025-06ND
2014-02-204B20042-07ND
2014-02-204B20041-07ND
2014-02-204B20042-06ND
2014-03-114C11016-07ND
2014-03-114C11027-07ND
2014-03-114C11016-06ND
2014-04-094D09031-01ND
2014-04-094D09036-01ND
2014-04-094D09037-01ND
2014-06-114F11107-05ND
2014-06-114F11107-04ND
2015-01-2113561249ND
2015-01-2113561276ND
2015-01-2113561250ND
2015-02-1713561333ND
2015-02-1713561297ND
2015-02-1713561334ND
2015-03-1713561375ND
2015-03-1713561376ND
2015-03-1813561402ND
2015-04-2813561439ND
2015-04-2813561438ND
2015-05-2013561501ND
2015-05-2013561465ND
2015-05-2013561502ND
2015-06-1713561564ND
2015-06-1713561528ND
2015-06-1713561565ND
2015-07-1413561606ND
2015-07-1413561633ND
2015-07-1413561607ND
2015-08-1213561691ND
2015-08-1213561654ND
2015-08-1213561690ND
2015-09-1613561753ND
2015-09-1613561717ND
2015-09-1613561754ND
2015-10-1513561795ND
2015-10-1513561822ND
2015-10-1513561796ND
2015-11-1113561189ND
2015-11-1113561165ND
2015-11-1113561213ND
2015-12-1013681488ND
2015-12-1013681518ND
2015-12-1013681489ND
2016-01-2613801557ND
2016-01-2613801509ND
2016-01-2613801533ND
2016-02-2313917113ND
2016-02-2313917071ND
2016-02-2313917114ND
2016-03-1614032230ND
2016-03-1614032207ND
2016-03-1614032184ND
2016-04-2014163599ND
2016-04-2014163557ND
2016-04-2014163600ND
2016-05-1814312907ND
2016-05-1814312937ND
2016-05-1814312908ND
2016-06-2114471232ND
2016-06-2114471263ND
2016-06-2114471233ND
2016-07-1914636474ND
2016-07-1914636430ND
2016-07-1914636475ND
2016-08-2314804537ND
2016-08-2314804487ND
2016-08-2314804512ND
2016-09-2814975890ND
2016-09-2814975921ND
2016-09-2814975891ND
2017-01-1715573246ND
2017-01-1715573247ND
2017-01-1815573202ND
2017-02-2315709659ND
2017-02-2315709660ND
2017-03-1315850540ND
2017-03-2315850707ND
2017-03-2815850835ND
2017-04-1816001589ND
2017-04-1816001590ND
2017-06-2816321151ND
2017-07-1216473294ND
2017-07-1216473397ND
2017-07-1216473398ND
2017-07-1216473399ND
2017-07-1216473400ND
2017-07-1216473401ND
2017-07-1216473402ND
2017-08-0316629369ND
2017-09-2016787340ND
2017-10-3116937432ND
2017-11-2617077314ND
2017-11-2617077315ND
2017-11-2617077316ND
2017-11-2617077317ND
2017-11-2617077318ND
2017-11-2617077319ND
2017-11-3017077371ND
2017-12-1917217479ND