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报道了长江和辽河沉积物中１７种多环芳烃（ＰＡＨｓ）类污染物的含量及分布状况．所研究的长江南京段沉积物中多环芳烃总量变化范围为 ２１３．８～５５０．３２ｎｇ／ｇ（干重），辽河新民段沉积物中多环芳烃总量变化范围为 ２７．４５～１９８．２６ｎｇ／ｇ（干重）．测定结果表明，长江和辽河沉积物中多环芳烃具有不同的空间分布模式：长江段以南京市下游的沉积物中ＰＡＨｓ含量为最高，而辽河段则以新民市区的沉积物中ＰＡＨｓ含量为最高但总的来说，长江南京段沉积物中多环芳烃的污染水平明显高于辽河新民段沉积物所受的多环芳烃污染．
The content and distribution of 17 PAHs in the sediments of the Yangtze River and Liaohe River were reported. The total amount of PAHs in the sediments collected from the Nanjing section of the Yangtze River ranged from 213.8 to 550.32ng / g (dry weight), and the total PAHs in sediments from Xinmin section of Liaohe River ranged from 27.45 to 198 .26 ng / g (dry weight). The results show that there are different spatial distribution patterns of PAHs in the sediments of the Yangtze River and Liaohe River: the PAHs content of the sediments in the lower reaches of the Yangtze River in Nanjing City is the highest, while that of the Liaohe River in the sediments of Xinmin City is The highest but generally speaking, the levels of polycyclic aromatic hydrocarbons in the sediments of the Nanjing section of the Yangtze River were significantly higher than those of the sediments of the Xinmin section of the Liaohe River.