Distribution, sources, and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in surface sediments from Daya Bay, South China

被引：13
作者：
Han, Bin [1 ,2 ]
Cui, Dongyang [3 ,4 ]
Liu, Ang [1 ,5 ]
Li, Qian [1 ]
Zheng, Li [1 ,2 ]
机构：
[1] Minist Nat Resources, Inst Oceanog 1, Marine Bioresources & Environm Res Ctr, Qingdao 266061, Peoples R China
[2] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
[3] MNR, Key Lab Urban Land Resources Monitoring & Simulat, Shenzhen 518034, Peoples R China
[4] Shenzhen Real Estate Assessment Res Ctr, Shenzhen 518040, Peoples R China
[5] Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2021年 / 28卷 / 20期
基金：
中国国家自然科学基金;
关键词：
Polycyclic aromatic hydrocarbons; Sediments; Source apportionment; Risk assessment; Daya Bay; SOURCE APPORTIONMENT; MARINE; RIVER; WATER; LAKE; IDENTIFICATION; ESTUARY; SOILS; AREA; SEA;
D O I：
10.1007/s11356-020-11956-w
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this study, the concentrations of 16 kinds of polycyclic aromatic hydrocarbons (PAHs) in surface sediments of Daya Bay were determined and analyzed. Results showed that 16 PAHs were detected in all the samples, and the total PAH concentration ranged from 70.18 to 128.04 ng g(-1), with an average of 103.17 ng g(-1). The cyclic number distribution of PAHs in the sediments was mainly 4 and 5 rings. Six classic PAH ratios named Ant/(Ant + Phe), Fla/(Fla + Pyr), [InP/(InP + BghiP)], [BaA/(BaA + Chr)], BaA/BghiP, and LMW/HMW, and principal component analyses showed that the main source of PAHs in this region was combustion (biomass, coal, and petroleum combustion), and the secondary source was petroleum. The ecological risk analysis of PAHs by using effect range low/median method and mean effects range-median quotient method showed that all of PAHs are lower than the effect range low (ERL) level and the effects range-median quotient (M-ERM-Q) value of all stations is 0.0027-0.0067, with an average value of 0.0046. Thus, it can be seen that PAHs are at a low-risk level in surface sediments of Daya Bay.
引用
收藏
页码：25858 / 25865
页数：8
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