Benzo(a)pyrene
Chemical element and a member of a class of organic chemicals called polycyclic aromatic hydrocarbons (PAHs) that occur naturally in coal tar, petroleum, and crude oil. There are no known industrial uses for benzo(a)pyrene, but small amounts are used as a laboratory reagent for research.
EPA MCLG Level
0 ppb
Maximum level that poses minimal health risk based on the latest science
Health Effects
Drinking water standards for benzo(a)pyrene are based on potential reproductive toxicity and increased risk of cancer. Additional health protective benchmarks for benzo(a)pyrene are based on potential developmental toxicity. The EPA classifies it as a known human carcinogen.
Affected Organs & Systems:
Common Sources
- Widespread in the environment due to the use of coal and oil
- The primary source of PAHs in drinking water is release from pipe coatings made of coal tar
- Also enter source water naturally through rainwater runoff or dust particles from industrial processes or forest fires settling in surface water
- Additional sources include wastewater and landfill runoff
- Elevated levels of PAHs like benzo(a)pyrene are most often present near hazardous waste sites
How to Remove It
Water filters certified under the following NSF standards are effective at removing Benzo(a)pyrene:
EPA MCLG Level
The EPA MCLG represents the maximum level that poses minimal health risk based on the latest scientific research. It's often more protective than federal legal limits.
Contaminant Type
Benzo(a)pyrene is classified as a Petroleum Compounds contaminant.
This contaminant primarily affects the developmental, reproductive-m, and other systems.
Check Your Water
Find out if Benzo(a)pyrene is in your tap water.
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