Assessment of incremental lifetime cancer risks of ambient air PM-bound PAHs in oil-rich cities of Iran.

This study investigates the concentrations of PM-bound PAHs and their seasonal variations in three cities of Ahvaz, Abadan, and Asaluyeh in Iran. The mean concentrations of PM in two warm and cold seasons in Ahvaz were higher and in Abadan and Assaluyeh were lower than the national standard of Iran and the guidelines of the World Health Organization. The Σ16 PAHs concentration in ambient air PM during the cold season in Ahvaz, Abadan and Asaluyeh was 244.