通过比较城市大气PM10中优控PAHs的总量、苯并(a)芘(BaP)的浓度水平和BaP的等效致癌毒性(BEQ),评估厦门市大气有机污染的程度及其对人体的健康风险,结果表明,厦门市15种优控PAHs年平均浓度为16.08ng·m^-3,BaP年平均浓度为0.70ng·m^-3,BEQ为1.58.
The concentration and distribution character of priority PAHs in PM10at different function areas of Xiamen city were studied and BEQ was calculated. When comparing with other big cities in China, the concentrations and pollution level (BEQ) of priority PAHs in Xiamen city were lower, with PAHs annual concentration of 16. 08ng · m^-3 BaP 0.70 ng·m^-3and BEQ 1.58. It was suggested that monitoring organic toxic pollutants and control must be enhanced based on the evaluation of health risk from PAHs, particularly in those big cities with PAHs concentrations and BEQ higher than the acceptable level.