Humans can be exposed to PAHs through various routes including inhalation, ingestion, and dermal contact. Major sources of PAH exposure include:
Tobacco smoke: Smoking cigarettes is a significant source of PAH exposure. Diet: Consumption of charred or grilled foods can introduce PAHs into the body. Occupational exposure: Workers in industries such as aluminum production, coal tar processing, and roofing may be exposed to high levels of PAHs. Environmental pollution: PAHs are prevalent in the air, water, and soil due to vehicle emissions, industrial discharges, and residential heating.
