厦门－金门海域表层沉积物中HCHs、DDTs和PCBs的含量与分布

Concentrations and Distributions of HCHs,DDTs and PCBs in Surface Sediments of Sea Area Between Xiamen and Jinmen

１９９５年１０月对厦门－金门海域表层沉积物中的有机氯农药（ＨＣＨｓ和ＤＤＴｓ）及多氯联苯（ＰＣＢｓ）的含量与分布进行调查研究．ＨＣＨｓ、ＤＤＴｓ和ＰＣＢｓ的含量范围分别为０．０３～０．４８ｎｇ／ｇ、２．９７～９．１６ｎｇ／ｇ和０．０２～０．１１ｎｇ／ｇ．对其分布形式、残留水平以及组成等进行了评价与探讨．结果表明，厦门－金门海域基本上未受到ＨＣＨｓ和ＰＣＢｓ的污染，只受到ＤＤＴ的轻度污染．但是，ＤＤＴ近期仍有输入，新的污染源尚未根除．

The concentrations and distributions of HCHs,DDTs and PCBs in the surface sediments of the sea area between Xiamen and Jinmen were investigated during a cruise in Oct. 1995. Concentration ranges of HCHs, DDTs and PCBs were 0. 03～ 0. 48 ng/g, 2. 79 ～ 9. 16ng/g,and 0. 02～0. 11 ng/g,respectively. The distribution patterns, residue levels and compositions of these organochlorines are evaluated and discussed. The results indicated that the sea area between Xiamen and Jinmen had not been polluted by HCHs and PCBs in the main, and was only slightly polluted by DDTs. However, recent inputs of DDT still existed and new pollutant sources were not eradicated yet.