Occurrence, Distribution, Environmental Risk Assessment and Source Apportionment of Polycyclic Aromatic Hydrocarbons (PAHs) in Water and Sediments of the Liaohe River Basin, China

被引：46

作者：

Bai, Yangwei ^{[1
,2
]}

Meng, Wei ^{[1
,2
]}

Xu, Jian ^{[1
]}

Zhang, Yuan ^{[1
]}

Guo, Changsheng ^{[1
]}

Lv, Jiapei ^{[1
]}

Wan, Jun ^{[1
]}

机构：

[1] Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China

[2] Beijing Normal Univ, Coll Water Sci, Beijing 100012, Peoples R China

来源：

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2014年 / 93卷 / 06期

基金：

美国国家科学基金会;

关键词：

Polycyclic aromatic hydrocarbons; Occurrence; Environmental risk assessment; Source identification; Liaohe River Basin; YELLOW-RIVER; SURFACE SEDIMENTS; ESTUARY; PCBS; CONTAMINATION; NORTHEAST; MIDDLE; LEVEL; USA;

D O I：

10.1007/s00128-014-1390-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The occurrence and distribution of polycyclic aromatic hydrocarbons (PAHs) were investigated in water and sediments in Liaohe River Basin. The total PAH concentrations ranged from 111.9 to 2,931.6 ng/L in water and from 92.2 to 295,635.2 ng/g dry weight (dw) in sediments. The PAHs in water were dominated by 2-, 3- and 4-ring PAHs, which accounted for 42.8 %, 39.4 % and 14.2 % of the total PAHs, respectively, while in sediment PAHs were dominated by 3-, 4- and 5-ring PAHs, which accounted for 26.5 %, 44.2 % and 17.4 % of the total PAHs, respectively. The benzo[a] pyrene equivalents for water samples showed that in 37 out of 50 sites the values were greater than the national standard, and the environmental risk assessment indicated that high environmental risk of PAHs existed in sediments. Using the molecular ratio method for the source identification it was concluded that PAHs were determined to be from mixed sources (petroleum and combustion) in Liaohe River system and combustion sources in Daliao River system.

引用

页码：744 / 751

页数：8

共 25 条

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