Know Your Environment. Protect Your Health.

Styrene

Aqua Pa Uwchlan

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.

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND70ND
2020ND60ND
2021ND60ND
2022ND70ND
2023ND80ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-01-29AF74449ND
2018-01-31AF73819ND
2018-02-26AF76934ND
2018-02-26AF76935ND
2018-03-13AF77984ND
2018-03-13AF77985ND
2019-03-06AG10268ND
2019-03-06AG10267ND
2019-03-06AG10266ND
2019-03-12AG10439ND
2019-03-12AG10441ND
2019-03-27AG11746ND
2019-11-07AG37520ND
2020-03-1121837130.00ND
2020-03-1121837214.00ND
2020-03-1121837172.00ND
2020-03-1121837151.00ND
2020-03-2621837193.00ND
2020-05-2122205111.00ND
2021-02-1023880035.00ND
2021-02-1023880077.00ND
2021-02-1023880056.00ND
2021-02-2323880119.00ND
2021-02-2323880098.00ND
2021-07-0924819027.00ND
2022-02-1826109283.00ND
2022-02-1826109371.00ND
2022-02-1826109304.00ND
2022-02-1826109325.00ND
2022-02-1826109350.00ND
2022-08-0327224155.00ND
2022-11-2927814210.00ND
2023-02-1728341094.00ND
2023-02-2728341115.00ND
2023-02-2728341136.00ND
2023-03-2128512465.00ND
2023-03-2128512444.00ND
2023-04-1728692211.00ND
2023-05-0128890031.00ND
2023-08-2929691281.00ND