Benzo[a]pyrene is a polycyclic aromatic hydrocarbon contaminant that acts as a chemical carcinogen in cancer experimental models.

Terephthalic acid, a raw material for polyethylene terephthalate (PET) production, is one of the most important chemicals in petrochemical industry.

DMBA 是一种具有致癌活性的多环芳烃 (PAH)，DMBA 被代谢为反应性中间体，例如顺式和反式二醇环氧化物，并广泛结合表皮 DNA，导致DNA损伤和突变，从而引发癌症。