南黄海中部表层沉积物中多环芳烃分布特征及来源分析

被引:25
作者
张生银 [1 ,2 ,3 ]
李双林 [2 ]
董贺平 [2 ]
赵青芳 [2 ]
史基安 [1 ]
张中宁 [1 ]
机构
[1] 中国科学院油气资源研究重点实验室
[2] 国土资源部海洋油气资源与环境地质重点实验室
[3] 中国科学院大学
关键词
海洋沉积物; 多环芳烃; 分布特征; 来源分析; 南黄海;
D O I
暂无
中图分类号
X132 [环境分析化学]; X55 [海洋污染及其防治];
学科分类号
083001 ; 071012 ; 0713 ; 083002 ;
摘要
通过对南黄海中部49个表层沉积物样品进行总有机碳,粒度,多环芳烃和甲基菲等GS-MS定量分析,探讨了研究区沉积物中多环芳烃分布特征,分子组成,评估南黄海中部多环芳烃污染水平并识别其来源.研究表明,南黄海中部14种多环芳烃总量(ΣPAHs)在81.63~6567.31ng/g之间,其中优控多环芳烃(ΣEPAPAHs)11种,含量为29.2~1029.1 ng/g,平均含量255.1 ng/g,与国内外其他地区相比有机污染水平为中-低;苝为研究区内主要多环芳烃,分布较为广泛,其含量占所有PAHs的6.40%88.85%,低含量苝与人为活动有关,而高含量苝代表了陆源有机质输入;多环芳烃组成,异构体分析和甲基菲特征表明,研究区优控多环芳烃主要为煤和高等植物燃烧或不完全燃烧产物以气溶胶形式输入,但部分样品表现出明显的石油源特性也证实了石油燃料,原油泄露产生的多环芳烃客观存在.
引用
收藏
页码:1263 / 1270
页数:8
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