Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Monochlorobenzene (chlorobenzene)

Wilk-amite W/a #1-south

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND20ND
2014ND30ND
2015ND10ND
2016ND30ND
2017ND40ND

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
2013-07-30130731-013VOND
2013-10-22131023-005VOND
2014-01-21140122-014VOND
2014-04-17140418-005VOND
2014-07-24140725-001VOND
2015-07-08150709-001VOND
2016-02-23160224-006VOND
2016-04-12160413-007VOND
2016-11-03161104-001VOND
2017-03-22170323-001VOND
2017-05-16170517-011VOND
2017-08-21170822-014VOND
2017-11-16171120-001VOND