Polycyclic aromatic hydrocarbons (PAHs) in seawater and sediments from the northern Liaodong Bay, China

被引：88
|
作者：
Zhang, Anguo [1 ,2 ]
Zhao, Shilan [1 ]
Wang, Lili [1 ]
Yang, Xiaolong [3 ]
Zhao, Qian [1 ]
Fan, Jingfeng [1 ]
Yuan, Xiutang [1 ]
机构：
[1] State Ocean Adm, Natl Marine Environm Monitoring Ctr, 42 Linghe St, Dalian 116023, Liaoning Provin, Peoples R China
[2] Dalian Ocean Univ, Coll Fisheries & Life Sci, Dalian 116023, Peoples R China
[3] Ocean Univ China, Coll Fisheries, Qingdao 266100, Peoples R China
来源：
MARINE POLLUTION BULLETIN | 2016年 / 113卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
POPs; PAHs; Seawater; Sediment; Northern Liaodong Bay; Distribution; Source; Ecological risk assessment; ECOLOGICAL RISK-ASSESSMENT; PEARL RIVER DELTA; SOURCE APPORTIONMENT; SURFACE SEDIMENTS; MARINE-SEDIMENTS; BOHAI SEA; TEMPORAL DISTRIBUTION; QUALITY GUIDELINES; COASTAL WATER; BED SEDIMENTS;
D O I：
10.1016/j.marpolbul.2016.09.005
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Levels, sources, and potential ecological risks of polycyclic aromatic hydrocarbons (PAHs) in surface seawater and sediments from the northern Liaodong Bay of China were seasonally investigated. Total concentrations of 16 PAHs varied from 145.96 ng/L to 896.58 ng/L in seawater, and from 191.99 ng/g to 624.44 ng/g in sediments. PAH concentrations in seawater differed significantly, whereas those in sediments exhibited a relatively stable pattern across seasons. PAHs with low molecular weight were predominant in seawater, but PAHs with high molecular weight were abundant in sediments. Crop straw and coal combustion were the main PAH pollution sources. The current levels of PAHs in the northern Liaodong Bay are relatively moderate compared with those in other bays and estuaries. Sediment from all sampling sites is characterized by low to medium ecotoxicological risk. No highly negative toxic effect could occur on the organisms and ecosystems in the northern Liaodong Bay. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：592 / 599
页数：8
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