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EWG's Tap Water Database — 2019 UPDATE

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1,2,4-Trichlorobenzene

Pennsylvania American Royersford

1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND90ND
2015ND100ND
2016ND40ND
2017ND50ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 5 ppb

The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene 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 hormone disruption.

EPA Maximum Contaminant
Level (MCL) 70 ppb

The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-0816353301ND
2012-02-0816353901ND
2013-04-2321984601ND
2013-04-2321984701ND
2014-04-0225340001ND
2014-04-0225341501ND
2014-04-0325340301ND
2014-04-0325340801ND
2014-06-2525340501ND
2014-08-0626818001ND
2014-08-0626818101ND
2014-10-0627104001ND
2014-10-0627103901ND
2015-01-0812283042ND
2015-01-0812283021ND
2015-04-0912628862ND
2015-04-0912628883ND
2015-04-0912628927ND
2015-04-0912628904ND
2015-07-1313008743ND
2015-09-1613260269ND
2015-10-0613385330ND
2015-10-0613385309ND
2016-04-0514097866ND
2016-04-0514097824ND
2016-04-0514097889ND
2016-04-0514097845ND
2017-04-1115931634ND
2017-04-1115931571ND
2017-04-1115931657ND
2017-04-1115931592ND
2017-04-1115931613ND