Know Your Environment. Protect Your Health.

Benzo[a]pyrene

City of Beaverton

NOTE: City of Beaverton purchases water from Joint Water Commission which is required to test for benzo[a]pyrene. Sample information shown below was taken by Joint Water Commission.

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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

NOTE: City of Beaverton purchases water from Joint Water Commission which is required to test for benzo[a]pyrene. Sample information shown below was taken by Joint Water Commission.

Date Lab ID Result
2018-02-071809141-SND
2018-11-051884309-SND
2019-04-241928990-SND
2019-11-041981259-SND
2020-04-012021410-SND
2020-07-012041305-SND
2020-11-042074464-SND
2021-04-072123196-SND
2021-11-032180746-SND
2022-03-312221620-SND
2022-11-0222-71086-SND
2023-04-1023-19659-SND
2023-11-0623-67462-SND