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EWG's Tap Water Database — 2019 UPDATE

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Monochlorobenzene (chlorobenzene)

City of Baltimore

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND30ND
2014ND30ND
2015N/A00N/A
2016ND30ND
2017ND10ND

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
2012-04-300300002_01_TREATND
2012-04-300300002_02_TREATND
2013-01-250300002_01_TREATND
2013-01-250300002_02_TREATND
2013-01-250300002_02_TREATND
2014-02-040300002_01_TREATND
2014-02-110300002_02_TREATND
2014-02-120300002_02_TREATND
2016-05-050300002_TREATED_ND
2016-05-100300002_TREATED_ND
2016-05-160300002_TREATEDTND
2017-04-06TREATED_AND