hydrocarbons (PAHs), is airborne, which makes it especially hard to avoid. PAHs are by-products of combustion and can be breathed in from fumes from cigarette and tobacco smoke, coal and coal tar, gas stoves, wildfires, hazardous waste, asphalt, and traffic pollution. You can also be exposed to PAHs if you eat foods grown in affected soil or that have been cooked on a grill. Beware. Higher exposure to PAHs has been shown to be associated with shorter telomere length in several studies.
