Historical Trends of Polycyclic Aromatic Hydrocarbons in the Reservoir Sediment of the Dianchi Watershed, Southwest China

被引：10
|
作者：
Sun, Panpan [1 ]
Xie, Biao [1 ,2 ,3 ]
Song, Yimin [1 ]
Yang, Hao [1 ,2 ,3 ]
Wang, Yanhua [1 ]
机构：
[1] Nanjing Normal Univ, Sch Geog Sci, Nanjing 210023, Jiangsu, Peoples R China
[2] Nanjing Normal Univ, Jiangsu Prov Key Lab Mat Cycling & Pollut Control, Nanjing 210023, Jiangsu, Peoples R China
[3] Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China
来源：
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2017年 / 99卷 / 01期
基金：
中国国家自然科学基金;
关键词：
PAHs; Source apportionment; Risk assessment; Reservoir sediments; ECOLOGICAL RISK-ASSESSMENT; SOCIOECONOMIC-DEVELOPMENT; CONTINENTAL-SHELF; WESTERN CHINA; RIVER ESTUARY; YELLOW-RIVER; LAKES; PAHS; RECORD; CORE;
D O I：
10.1007/s00128-017-2095-5
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Using gas-chromatography/mass spectrometry (GC-MS) method dating data (Pb-210 and Cs-137) and OCPs signatures, the temporal distribution of polycyclic aromatic hydrocarbons (PAHs) was investigated in dated sediment core from Baoxianghe reservoir in Dianchi watershed, Southwest China. The concentrations of total PAHs were in the range of 162.3-762.2 ng g(-1) from 1945 to 2013. There showed an obvious increase from 1960s to 2000s. The distributions of PAHs were influenced by local population and Gross Domestic Product (GDP) during the period between1962 and 2004. PAHs sources changed from biomass or domestic coal combustion (before 1980) to liquid fossil fuel combustion (after 1980). Total toxic toxicity equivalents (TEQs) of the carcinogenic PAHs were very low (3.03-28.08 ng g(-1)).
引用
收藏
页码：117 / 124
页数：8
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