东营市三个河口区域表层海水重金属的分布与生态风险评价  

Distribution and Ecological Risk Assessment of Heavy Metals in Surface Seawater from Three Estuaries in Dongying

作　　者：崔衍波 冯永亮 刘群群 王菲菲[1] 崔鸿武 王曰杰 孟范平[1] CUI Yan-Bo;FENG Yong-Liang;LIU Qun-Qun;WANG Fei-Fei;CUI Hong-Wu;WANG Yue-Jie;MENG Fan-Ping(College of Environmental Science and Engineering,Ocean University of China,Qingdao 266100,China;Foundation Department of Tangshan College,Tangshan 063000,China)

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266100 [2]唐山学院基础教学部,河北唐山063000

出　　处：《中国海洋大学学报（自然科学版）》2019年第1期93-101,共9页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(41240040);横向项目(东营市海洋与渔业局)资助~~

摘　　要：2015年8月监测了东营市广利河、神仙沟河、挑河3个河口海水中7种重金属污染物浓度,以二类海水水质标准来看,3个河口的重金属主要污染物为铜和汞。与国内外其它河口的海水重金属污染物浓度相比,东营市河口海域的Hg浓度在国内居于较高水平,其它污染物则处于中等水平。采用风险商(HQs)和联合概率曲线(JPCs)相结合的方法,评价了7种重金属对三个河口海域的生态风险,发现As,Cd,Hg和Pb对3个河口海域的生态风险可接受,Cu,Cr6+和Zn不可接受。其中Cu,Cr6+和Zn对广利河和神仙沟河河口海域的生态风险大小顺序均为Cu>Zn>Cr^(6+),对挑河河口为Cu>Cr^(6+)>Zn,Cu为3个河口海域的主要污染物。本研究为东营市河口区域重金属污染的生态管理提供科学依据。Seven heavy metals(Hg,As,Pb,Cd,Cr 6+,Cu,Zn)in surface seawater of three estuaries(Guanglihe,Shenxiangouhe,Tiaohe)were monitored in August,2015.The comparison of concentrations in seawater with GradeⅡof Sea Water Quality Standard(GB 3097-1997)showed that Cu and Hg were the main pollutants in the three estuaries.Comparing with other estuaries,the concentrations of Hg in the estuaries of Dongying were the highest and other heavy metals were in the middle level.An assessment of the ecological risks posed by these heavy metals in surface seawater were conducted by combining the hazard quotient(HQs)and joint probability curve(JPCs)methods.The results reveal that the ecological risks posed by As,Cd,Hg,and Pb were at an acceptable level,while Cu,Cr 6+,and Zn were not.The order of ecological risk of Cu,Cr 6+,and Zn was Cu>Zn>Cr 6+to Guanglihe and Shenxiangouhe and Cu>Cr 6+>Zn to Tiaohe.Cu was the main pollutant in the three estuaries.This study provides scientific basis for the ecological management of heavy metal pollution in the estuary of Dongying.

关 键 词：广利河 挑河 神仙沟河 重金属 生态风险评价 

分 类 号：X171.5[环境科学与工程—环境科学]