摘要
根据2005年8月对厦门典型养殖海域——同安湾及大嶝海域表层沉积物的调查资料,分析了表层沉积物中重金属的质量分数,研究了表层沉积物中有机质以及与重金属的相关性,并运用单因子评价法评估了沉积环境质量。结果表明:同安湾和大嶝海域表层沉积物中Hg,Cd,Pb,Cu,As的平均质量比分别为0.060,0.057,31.8,20.4,7.27mg/kg和0.047,0.096,26.6,25.2,6.65mg/kg;各重金属元素之间(除Cd外)呈显著的正相关,与有机质也呈很好的正相关关系;各要素均未对研究海域表层沉积物构成污染,表层沉积物质量符合国家一类沉积物标准。
According to the survey on surface sediments from Tong＇An Bay and Dadeng in August 2005, contents of heavy metals in surface sediments and correlations between heavy metals and organic matters in surface sediments have been analyzed. The quality of sediment environment was also evaluated by single factor evaluation model. The results may be summarized as follows： the average contents of Hg, Cd, Pb, Cu and As in surface sediments in Tong＇An Bay and Dadeng sea area are 0.060, 0.057, 31.8, 20.4, 7.27 mg/kg and 0.047, 0.096, 26.6, 25.2, 6.65 mg/kg, respectively, which are all below the values of First-class Standard for Marine Sediments Quality. There were distinct positive correlations among the four heavy metals except for Cd, and the contents of these heavy metals also have the good positive correlations with the organic matter. Surface sediments of monitoring zones have not been polluted by Hg, Cd, Pb, Cu, As and organic matters.
出处
《海洋科学》
CAS
CSCD
北大核心
2006年第7期43-47,共5页
Marine Sciences
基金
厦门市海洋与渔业局资助项目
关键词
重金属
沉积物
环境质量
厦门
heavy metals
sediment
environment quality
Xiamen
