Source Identification, Emission Characters and Tendency of Atmospheric PAHs in China: A Review

摘要

PAHs are widespread environmental pollutants, which originate mostly from incomplete combustion of fossil fuels and organic materials. Due to their well-known carcinogenic and mutagenic properties in humans, PAHs are a concern to more and more people. This review serves as a database to analyse the major emission sources characters and identify the probable sources of PAHs by using diagnostic ratio and principal component analysis. Estimation of PAHs emission in China and toxic equivalency factors of priority PAHs considered by USEPA were also conducted, contributing to establish policies for control the pollution of PAHs in China.