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EWG's Tap Water Database — 2019 UPDATE

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Ethylbenzene

Marshall Waterworks

Ethylbenzene, a component of petroleum, is a volatile cancer-causing chemical primarily used for production of plastics and rubber. Ethylbenzene is also released from gasoline fuel emissions. Read More.

In animal studies, exposure to ethylbenzene causes tumors. Ethylbenzene can also damage lungs, liver, kidneys and the nervous system. The International Agency for Research on Cancer classifies ethylbenzene as “possibly carcinogenic to humans.”

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND80ND
2014ND40ND
2015N/A00N/A
2016N/A00N/A
2017ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 300 ppb

The EWG Health Guideline of 300 ppb for ethylbenzene 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) 700 ppb

The legal limit for ethylbenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1950s.

ppb = parts per billion

All test results

Date Lab ID Result
2012-06-19OW004720ND
2012-06-19OW004719ND
2012-09-10OX000854ND
2012-11-05OX001574ND
2013-02-12OX002419ND
2013-02-12OX002418ND
2013-02-12OX002417ND
2013-04-02OX002886ND
2013-07-01OY000002ND
2013-07-08OY000057ND
2013-07-08OY000055ND
2013-07-08OY000056ND
2014-02-05118447001ND
2014-02-11119095001ND
2014-02-19120152001ND
2014-07-15145217001ND
2017-07-181004617ND
2017-07-181004620ND