浙南沿海沉积物中重金属污染及其潜在生态危害评价

发布时间：2018-07-03 13:04

  本文选题：浙南沿海 + 重金属　； 参考：《浙江农业学报》2016年01期

【摘要】：测定了浙南沿海苍南霞关(CN)、洞头霓屿(DT)和乐清清江口(QJK)海域表层沉积物中重金属的含量,并采用Hakanson潜在生态危害指数法对其生态危害进行评价。结果表明,这3个地区各个站点的重金属污染状况呈现一定的相似性,Cu,Pb,Zn和Cr均属于中等污染程度;3个地区平均综合污染指数分别为6.44,7.23,6.45,属于低污染程度。3个地区的生态风险指数表现为DT(45.29)CN(42.26)QJK(42.16),指数数值都小于150,属于低生态危害程度,在空间分布上,苍南霞关和乐清清江口呈现近岸高、远岸低,湾内高、湾外低的变化趋势。
[Abstract]:The contents of heavy metals in the surface sediments of Cangnan Xiaguan (CN), Dongtou Niyu (DT) and Yueqing River Estuary (QJK) were determined, and the ecological hazards were evaluated by Hakanson potential ecological hazard index method. The results show that The heavy metal pollution status of each station in these three areas is similar to that of CuCuPbPbPbPbPbPbPbPbPbCU Zn and Cr, and the average comprehensive pollution index of the three regions is 6.44% 7.236.45, which belongs to the low pollution degree. The ecological risk index of the three regions is indicated by the ecological risk index of the three regions. The index values of DT (45.29) CN (42.26) QJK (42.16) are all less than 150, which belong to low ecological hazard degree. In terms of spatial distribution, Cangnan Xiaguan and Yueqing Estuary showed a trend of high near shore, low far shore, high inside bay and low outside bay.
【作者单位】： 浙江省海洋水产养殖研究所/浙江省近岸水域生物资源开发与保护重点实验室;
【基金】：浙江省科技计划项目(2013C32059) 温州市招标项目(DHCG20140903) 临港工业开发背景下乐清湾海水增养殖区的环境监测和生态养护(浙海渔计[2012]100号)
【分类号】：X55;X826
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本文编号：2093744