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CAS 192-97-2

Benzo[e]Pyrene

Benzo[e]pyrene (BeP) is a polycyclic aromatic hydrocarbon (PAH) created when fuel, wood, or food burns incompletely. It often rides on soot and fine particles; while BeP itself isn’t classifiable for cancer by IARC (Group 3), it occurs with other PAHs that can cause harm [1][2].

Where It Comes From

Vehicle exhaust; residential wood/coal burning; wildfires; tobacco smoke; industrial combustion; tar/soot; grilled or smoked foods [1].

How You Are Exposed

Breathing air near traffic, wood stoves, or fires; secondhand smoke; eating charred/smoked meats; skin contact with contaminated soil, dust, or soot [1].

Why It Matters

PAH mixtures can irritate eyes/lungs and, with long-term exposure, raise cancer risk; BeP indicates PAH pollution and attaches to particles you can inhale [1][2][3].

Who Is at Risk

People who smoke or live/work around smoke or heavy traffic; firefighters; asphalt, coke/steel, or foundry workers; infants, children, and pregnancy are more sensitive [1].

How to Lower Your Exposure

Avoid smoke; don’t smoke indoors; use kitchen ventilation; limit charred/smoked foods; maintain wood stoves and burn dry wood; follow air-quality alerts and use HEPA filtration during smoke events; wash hands after soot/soil contact [1][4].

References

  1. [1]ATSDR. ToxFAQs for Polycyclic Aromatic Hydrocarbons (PAHs). https://www.atsdr.cdc.gov/toxfaqs/tfacts69.pdf
  2. [2]IARC Monographs, Vol. 92. Some Non-heterocyclic PAHs and Related Exposures (includes benzo[e]pyrene; Group 3). https://publications.iarc.fr
  3. [3]EPA. Provisional Peer-Reviewed Toxicity Values for Benzo[e]pyrene (CASRN 192-97-2). https://cfpub.epa.gov/ncea/pprtv
  4. [4]EPA/CDC. Wildfire Smoke: Guidance to Protect Public Health. https://www.airnow.gov/wildfire-smoke-guide/

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