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EWG's Tap Water Database — 2021 UPDATE

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Benzo[a]pyrene

Bridgestone MUD

Benzo[a]pyrene is a polycyclic aromatic hydrocarbon, or PAH, released from combustion of fossil fuels and waste incinerators. PAHs increase the risk of cancer; damage the immune, nervous and reproductive systems; and can harm developing fetuses.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND50ND
2016ND20ND
2017ND20ND
2018ND30ND
2019ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.007 ppb

The EWG Health Guideline of 0.007 ppb for benzo[a]pyrene 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) 0.2 ppb

The legal limit for benzo[a]pyrene, established in 1992, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to PAH exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-04AC49565ND
2015-03-03AC82646ND
2015-03-03AC82647ND
2015-03-03AC82645ND
2015-09-15AD07185ND
2015-11-24AD14597ND
2016-02-19AD24864ND
2016-02-19AD24868ND
2017-01-27AD67681ND
2017-01-27AD67682ND
2018-03-02AE16772ND
2018-05-21AE27099ND
2018-05-21AE27103ND
2019-02-22AE55739ND
2019-07-22AE75415ND