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EWG's Tap Water Database — 2019 UPDATE

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Styrene

Town of Princess Anne

Styrene is a volatile cancer-causing chemical used for manufacturing Styrofoam (polystyrene) and other plastics. Releases from industrial production sites and hazardous waste landfills cause styrene contamination in drinking water. Read More.

In addition to increasing the risk of cancer, styrene can also damage the liver and the nervous system. California set a public health goal for styrene in drinking water at 0.5 parts per billion. The federal Maximum Contaminant Level (MCL) allows up to 100 parts per billion of styrene in water, which is 200 times more than the California recommended level.

Click here to read more about carcinogenic VOCs.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND80ND
2013N/A00N/A
2014ND40ND
2015N/A00N/A
2016ND10ND
2017ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for styrene 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 cancer.

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for styrene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s. This limit may not fully protect against the risk of cancer due to styrene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-080190002_07_00424ND
2012-02-080190002_08_00424ND
2012-05-170190002_07_00593ND
2012-05-170190002_08_00593ND
2012-07-260190002_07_00312ND
2012-07-260190002_08_00312ND
2012-10-310190002_07_21890ND
2012-10-310190002_08_21890ND
2014-07-280190002_08_00408ND
2014-07-280190002_07_00408ND
2014-09-120190002_07_L5251ND
2014-09-120190002_08_L5251ND
2016-03-30E16003664001ND
2017-03-30E17003825004ND
2017-03-30E17003825006ND
2017-04-04L6753780-1ND
2017-04-12L6763074_1VOCND
2017-04-19L6769607-1ND
2017-04-19L6769607-2ND
2017-04-19L67696073ND
2017-06-13L6853722-1ND