Levels, composition profiles and sources of polycyclic aromatic hydrocarbons in surface sediments from Nan'ao Island, a representative mariculture base in South China

被引：58
作者：
Gu, Yang-Guang [1 ,2 ,3 ]
Lin, Qin [1 ,2 ,3 ]
Lu, Teng-Teng [1 ,2 ,3 ,4 ]
Ke, Chang-Liang [1 ,2 ,3 ]
Sun, Run-Xia [1 ,2 ,3 ]
Du, Fei-Yan [1 ,2 ,3 ]
机构：
[1] Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China
[2] Key Lab Fishery Ecol & Environm, Guangzhou 510300, Guangdong, Peoples R China
[3] Minist Agr, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Guangdong, Peoples R China
[4] Shanghai Peijie Filtrat Technol Co Ltd, Shanghai, Peoples R China
来源：
MARINE POLLUTION BULLETIN | 2013年 / 75卷 / 1-2期
关键词：
Mariculture; PAHs; Sediments; Risk assessment; Baisha Bay; FRASER-RIVER BASIN; RISK-ASSESSMENT; CONTINENTAL-SHELF; COASTAL AREA; HEAVY-METALS; FOOD-WEB; PAHS; BAY; MARINE; AQUACULTURE;
D O I：
10.1016/j.marpolbul.2013.07.039
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Levels, composition profiles and sources of 16 polycyclic aromatic hydrocarbons (PAHs) in surface sediments from Nan'ao Island, one of the largest mariculture bases in South China were investigated. The total PAHs concentrations ranged from 265.49 to 951.27 ng/g (dry weight) with a mean of 515.90 ng/g, and seven possible carcinogenic PAHs accounted for 76.94% of total PAHs. Among various mariculture sections, the highest PAHs level was found in the large seaweed culture; while the lowest concentration was detected in the abandoned culture. The composition of PAHs was characterized by low molecular weight PAHs, and Phe Ant and Pyr were the dominant constituent. PAHs may be mainly originated from petroleum and combustion of biomass and coal. Risk assessments suggested that the probability of adverse effect was lower than 25% and PAHs exposure was moderately carcinogenic. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：310 / 316
页数：7
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