Analysis and evaluation of heavy metal pollution of Uca arcuate in the intertidal zone of Xiaoyangshan
The heavy metal contents of Cu,Hg,Pb,Zn,Cd,Cr and As in the surface water,suspen-ded particulate matter,surface sediments and Uca arcuate in the Yangshan port and natural sea area were analyzed.The results showed that:the content of heavy metals in suspended particulates was sig-nificantly higher than that in surface sediments,Uca arcuate and surface water;the content of heavy metals in port waters was significantly higher than that in natural waters.In order to clarified the difference of heavy metal enrichment in different tissues of Uca arcuate,the contents of heavy metals in muscle,digestive tract,liver,gonad and gill were measured.The results showed that the contents of Cu,Pb,Zn,Cd and Hg in the digestive tract of Uca arcuate were significantly higher than those in oth-er tissues.Values of single factor heavy metal pollution index analysis showed that As pollution was the most serious in each tissue compared with other heavy metals.Cd in the digestive tract and As in the gonads of Uca arcuate reached the heavy pollution level in two sea areas.The Nemero heavy metal pollution index showed that the gonadal tissue of Uca arcuate in the port area was slightly polluted,and all the others were at no pollution level.
Uca arcuateheavy metalssurface sedimentsaccumulation
NETL
NSTL
万方数据
