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EWG's Tap Water Database — 2019 UPDATE

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Benzo[a]pyrene

City of Denison

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND

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
2012-02-011202040004ND
2012-02-011202040005ND
2013-03-061303263004ND
2013-06-12Q1302205016ND
2014-02-25Q1406059010ND
2014-02-25Q1406059009ND
2015-03-03Q1507894010ND
2015-06-15Q1522052003ND
2016-02-16Q1606768006ND
2016-02-16Q1606768005ND
2017-02-07Q1705466003ND
2017-08-08Q1733790003ND