山东半岛近岸海底表层沉积物重金属含量及污染评价  

Heavy metals in the surface sediment of the coastalwaters along the Shandong peninsula and their pollution evaluation

作　　者：光霞 褚忠信[1] 苗安洋 霍素霞[2] 朱龙海[1] GUANG Xia;CHU Zhongxin;MIAO Anyang;HUO Suxia;ZHU Longhai(College of Marine Geoscience,Ocean University of China,China Key Laboratory of Submarine Geosciences and Prospecting Techniques of Ministry of Education,Qingdao 266100,China;North China Sea Environmental Monitoring Center,Laboratory of Marine Spill Oil Identification and Damage Assessment Technology,SOA,Qingdao 266033,China)

机构地区：[1]中国海洋大学海洋地球科学学院海底科学与探测技术教育部重点实验室,山东青岛266100 [2]国家海洋局北海环境监测中心国家海洋局海洋溢油鉴别与损害评估技术重点实验室,山东青岛266033

出　　处：《海洋湖沼通报（中英文）》2024年第5期139-145,共7页Transactions of Oceanology and Limnology

基　　金：国家自然科学基金项目(41376052)。

摘　　要：为了解山东半岛近岸海域表层沉积物重金属的含量特征,本研究利用火焰光谱法及原子荧光法测定了山东半岛近岸海域40个站位表层沉积物中Hg、Cu、Pb、Cd、Cr、Zn及As共七种重金属的含量,同时应用地累积指数法及潜在生态风险评价法开展了污染程度及潜在生态风险评价。结果表明:山东半岛近岸海域表层沉积物中,1)Hg、Cu、Pb、Cd、Cr、Zn、As的平均质量浓度,分别为0.05、16.51、15.04、0.16、27.69、28.16、5.72 mg/kg;2)重金属平均污染程度分别为Cd>Cu>Pb>Hg>Zn>Cr>As,除Cd和Cu为轻度至偏中污染外,其他元素为无污染或轻度污染;3)单一重金属生态风险顺序依次为Cd>Hg>As>Pb>Cu>Cr>Zn,除Hg在24站处于中等生态风险外,其他元素在各站均处于轻微生态风险。In order to understand the concentrations characteristics of heavy metals in surface sediments of the coastal waters along the Shandong peninsula,the concentrations of heavy metals including Hg,Cu,Pb,Cd,Cr,Zn,As in 40 samples were measured by flame spectrophotometry and atomic fluorescence spectrometric.The index of geoaccumulation(Igeo)and the potential ecological risk index were then employed to evaluate the pollution degree and potential ecological risk of heavy metals in the sediments.The results indicated that the average mass concentration(mg/kg)of Hg,Cu,Pb,Cd,Cr,Zn,As in the coastal waters along the Shandong peninsula were 0.05,16.51,15.04,0.16,27.69,28.16,5.72,respectively.The pollution level of heavy metals in sediment by Igeo followed the order:Cd>Cu>Pb>Hg>Zn>Cr>As.The Igeo of most area was clean or in low level,except Cd and Cu were in low to medium level.The potential ecological risk of heavy metals in sediments by the potential ecological risk factors(Eir)followed the order:Cd>Hg>As>Pb>Cu>Cr>Zn.The potential ecological risk of most study area was in the low level,except for 24 stations which was in the medium level.

关 键 词：山东半岛 海底沉积物 重金属 污染评价 

分 类 号：P736[天文地球—海洋地质] X820[天文地球—海洋科学]