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CAS 195-19-7

Benzo(c)phenanthrene

Benzo(c)phenanthrene (B[c]Ph) is a polycyclic aromatic hydrocarbon made when fuels, wood, or tobacco burn incompletely [1]. It’s found at low levels in air, dust, soil, and some charred foods and is classified by IARC as possibly carcinogenic to humans (Group 2B) [1][2].

Where It Comes From

Vehicle and diesel exhaust, residential wood stoves and wildfires, industrial combustion, tobacco smoke, and soot/tars [1][4].

How You Are Exposed

Breathing outdoor or indoor air near traffic or smoke, eating grilled/smoked foods, skin contact with contaminated soil/soot, and certain jobs (asphalt, coke ovens, aluminum production) [1][4].

Why It Matters

PAHs can damage DNA; animal studies show B[c]Ph can cause tumors. In people, exposure to PAH mixtures is linked to cancers of the lung, skin, and bladder [1][2].

Who Is at Risk

Smokers and those around them; workers handling hot tar/asphalt or combustion emissions; people near high-traffic or industrial sites; infants, children, and pregnant people [1].

How to Lower Your Exposure

Don’t smoke and avoid secondhand smoke; limit heavily charred/smoked foods; use kitchen exhaust fans and cook with lower flames; damp-dust and wash hands after outdoor play; follow workplace controls and PPE [1][4].

References

  1. [1]ATSDR. Toxicological Profile for Polycyclic Aromatic Hydrocarbons (PAHs). 2020. https://www.atsdr.cdc.gov/toxprofiles/tp69.pdf
  2. [2]IARC Monographs, Volume 92: Some Non-heterocyclic Polycyclic Aromatic Hydrocarbons and Some Related Exposures. 2010. https://publications.iarc.fr/119
  3. [3]US EPA. Polycyclic Aromatic Hydrocarbons (PAHs). https://www.epa.gov/pahs

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