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本文利用原子荧光光度计、原子吸收分光光度计测定了湛江港表层沉积物和海洋生物中Hg、Cu、Zn、Pb、Cd 5种重金属元素的含量,分析评价沉积物和海洋生物中重金属的含量分布及富集特征。结果表明,除Cd外,其它重金属元素在沉积物中的含量均高于其在海洋生物体中的含量;湛江港海域Cu、Zn、Cd在生物体内积累较严重;软体类和甲壳类从沉积物中富集Hg和Pb能力相当,但软体类从沉积物中富集Zn和Cd能力高于甲壳类、富集Cu能力低于甲壳类。与沉积物重金属含量的非参数相关分析表明,沉积物中重金属既能促进也能抑制生物体内的重金属富集,但在软体类和甲壳类两类生物体中表现不同。
In this paper, the contents of heavy metal elements Hg, Cu, Zn, Pb and Cd in surface sediments and marine life of Zhanjiang Harbor were measured by atomic fluorescence spectrophotometer and atomic absorption spectrophotometer. The contents of heavy metals in sediments and marine life were analyzed Distribution and enrichment characteristics. The results showed that the content of other heavy metal elements in sediments was higher than that in marine organisms except for Cd. The accumulation of Cu, Zn and Cd in Zhanjiang harbor was more serious in organisms. The ability of Hg and Pb to enrich Hg and Pb was similar, but the ability of mollusks to enrich Zn and Cd from sediments was higher than that of crustaceans, and the ability to enrich Cu was lower than that of crustaceans. Non-parametric correlation analysis of heavy metals with sediment showed that heavy metals in sediments both promoted and inhibited the accumulation of heavy metals in the sediments, but did not perform well in both soft and crustacean organisms.