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.
作者
光霞
褚忠信
苗安洋
霍素霞
朱龙海
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)
出处
《海洋湖沼通报（中英文）》
CSCD
北大核心
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)。
关键词
山东半岛
海底沉积物
重金属
污染评价
the Shandong peninsula
coastal sediments
heavy metal
pollution evaluation
作者简介
第一作者:光霞(1997-),女,山东滨州人,硕士研究生,从事海洋地质的研究。E-mail:guangxia2024@163.com;通信作者:褚忠信(1976-),男,教授,主要从事海洋地质与第四纪地质研究。E-mail:zhongxinchu@ouc.edu.cn。
