北部湾沿岸表层沉积物中酚类内分泌干扰物与多环芳烃的污染特征及生态风险评价  

Pollution Characteristics and Ecological Risk Assessment of Phenols Endocrine Disruptors and PAHs in Surface Sediments of Beibu Gulf

作　　者：杨跃志[1] 张海丽[1] 李正炎[1,2] 杜秀萍[1] 王志峰[1] 孟范平[1,2] 

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]中国海洋大学海洋环境与生态教育部重点实验室,山东青岛266100

出　　处：《中国海洋大学学报（自然科学版）》2013年第6期87-92,共6页Periodical of Ocean University of China

基　　金：海洋公益性行业科研专项经费项目(201005012-2)资助

摘　　要：研究北部湾海域表层沉积物中5种酚类内分泌干扰物和16种多环芳烃的分布、来源及潜在的生态风险。结果表明:研究海域二氯酚、丁基酚、辛基酚、壬基酚及双酚A的含量分别为0.27～71.5,1.16～2.83,4.29～9.64,16.1～42.2和3.07～22.8ng/g;多环芳烃总量为352～1066ng/g,平均为573ng/g。多环芳烃含量与总有机碳(TOC)之间具有显著相关性(P<0.05),其主要来源是石油源,但化石燃料燃烧也是其来源之一。北部湾地区低环芳烃对当地生态存在潜在风险,其中萘的平均含量大于其效应低值(ERL);酚类污染物对部分海域的底栖生物也存在一定的威胁。综合分析表明,北部湾整体环境质量良好,但个别区域需要加强风险管理。Concentration,source and risk of five phenolic contaminants and 16 PAHs were studied in 9 sites in surface sediment of Beibu Gulf.The results showed that the concentrations of DCP、BP、OP、NP and BPA were 0.27-71.5,1.16-2.83,4.29-9.64,16.1-42.2 and 3.07-22.8 ng/g（dry weight）,respectively,and total PAHs concentration ranged from 352 to 1066 ng/g dw with a mean of 573 ng/g.There is significant correlation between PAHs and TOC（P0.05）and it was found PAHs mainly came from petrogenic sources.Low-molecular weight PAHs and phenolic contaminants in several sites would cause adverse effect on local ecosystem.Overall,the environment quality of Beibu Gulf is good,but environment management at some sites should be enhanced.

关 键 词：北部湾 酚类污染物 多环芳烃 生态风险评价 

分 类 号：X131.3[环境科学与工程—环境科学]