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Abstract: The concentrations, components, distribution and occurrence of polycyclic aromatic hydrocarbons (PAHs) from coal combustion and coking in the Shougang district, Beijing have been systematically studied. More than 40 kinds of PAHs have been detected in the power plant and coking plant, nine of them are precedence-controlled pollutants set by US EPA. Many PAHs are carcinogenic and mutated. The carbon isotope values vary with the temperature of coal combustion and coking, the higher temperature and the more complete combustion are, the lower δ13C values of PAHs are. So theδ13C values of PAHs may be used to identify the sources of environmental particulates from coal combustion and coking. The impact of PAHs from coal combustion and coking on the environment has been discussed as well. [Copyright &y& Elsevier]