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EWG's Tap Water Database — 2021 UPDATE

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Benzo[a]pyrene

Borough of Atglen

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015N/A00N/A
2016N/A00N/A
20170.0300 ppb51ND - 0.150 ppb
2018ND50ND
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
2014-03-191077387001ND
2014-06-232014211001ND
2014-09-152029185001ND
2014-12-082044698001ND
2017-03-3115789972ND
2017-05-0116088424ND
2017-05-0116088452ND
2017-08-1416559936ND
2017-10-10168747760.150 ppb
2018-01-098011248-01ND
2018-03-138031407-01ND
2018-05-018041267-01ND
2018-07-108071382-01ND
2018-10-098101401-01ND
2019-01-229012940-01ND
2019-04-099041373-01ND