Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Benzo[a]pyrene

Galveston County WCID 1

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND30ND
2014ND30ND
2015ND30ND
2016ND30ND
2017ND30ND

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
2012-02-01AB79856ND
2012-02-01AB79858ND
2012-02-01AB79854ND
2013-02-05AC09730ND
2013-02-05AC09727ND
2013-02-05AC09731ND
2014-01-30AC40932ND
2014-01-30AC40931ND
2014-01-30AC40930ND
2015-01-15AC76584ND
2015-01-15AC76586ND
2015-01-15AC76585ND
2016-01-26AD20199ND
2016-01-26AD20198ND
2016-06-27AD41974ND
2017-01-26AD67324ND
2017-01-26AD67323ND
2017-01-26AD67325ND