海洋环境中多环芳烃的污染状况及源解析

综述了国内外海洋水体、沉积物和生物体中多环芳烃(PAHs)的污染现状,分析了海洋环境中PAHs的来源。结果发现,不同海域PAHs的质量浓度差别较大,海水中PAHs的最高质量浓度为34338.0 ng/L,最低为13.0 ng/L;海洋沉积物中PAHs的最高质量比为1670.0μg/g,最低为24.1 ng/g;近海工业的发展程度及都市化进程与海域环境中PAHs的浓度存在明显的正相关关系;贝类的PAHs浓度比其他生物体高;海洋环境中的PAHs主要来源于海上石油烃的污染和陆地污染源的干湿沉降。

Pollution and sources of polycyclic aromatic hydrocarbons in oceanic environment

Sources of polycyclic aromatic hydrocarbons （PAHs） in seawater, sediment and organisms in the oceanic environment are reviewed. The results show that the concentration of PAHs differs in different oceanic environment. The highest and lowest concentrations are 34 338.0 ng/L and 13.0 ng/L, respectively, in seawater, and 1 670.0 μg/g and 24.1 ng/g, respectively, in sediment. The concentration of PAHs in seashells is higher than that in other organisms. The concentration of PAHs is positively related with the developing of coastal industry and urbanization. The sources of PAHs are mainly petroleum hydrocarbons and the wetting and drying deposition of terrestrial pollutants.