典型污染区河流表层沉积物中PAHs的分布、来源及生态风险
Distribution, Possible Source and Ecological Risk Assessment of Polycyclic Aromatic Hydrocarbons in River Sediments from a Typical Contaminated Area
查看参考文献32篇
|
文摘
|
利用同位素稀释气相色谱-质谱(GC/MS)联用技术定量分析了台州市路桥区37个河流沉积物样品中16种优控PAHs的浓度,并对其分布特征、来源及生态风险进行评价.结果表明,沉积物中16种PAHs的检出率均为100%,其总含量(∑PAHs)范围为59.3~3 180μg/kg,平均值为722μg/kg,与国内外同类研究相比处于中低程度污染水平;∑PAHs与有机碳(TOC)显著相关(r=0.699, p<0.001),表明TOC是影响沉积物中PAHs污染水平和归趋的重要因素之一.同分异构体比值和因子分析表明,路桥沉积物中PAHs来源于混合源,其中燃烧源占优势.有6个采样点的平均ERL商值>1,表明路桥部分采样点存在一定的生态风险;沉积物样品中PAHs的毒性当量浓度(TEQ_(BaP))介于3.41~485μg/kg之间,7种致癌性PAHs对TEQ_(BaP)的贡献为 98.4%,是生态风险的主要影响因素 |
|
其他语种文摘
|
The concentrations of 16 US EPA PAHs in 37 sediment samples collected from Luqiao were analyzed by isotope dilution gas chromatograph/mass spectrometer (GC/MS), and their distribution characters, sources and ecological risk were further investigated. Each of the 16 PAHs could be detected in all of the sediment samples, the total concentrations of the 16 PAHs in the sediments ranged from 59.3μg/kg to 3 180μg/kg, with a mean of 722μg/kg. The pollution level of PAHs can be categorized as lowto moderate when compared with other studies around the world.∑PAHs were significantly correlated with TOC (r=0.699, p<0.001), indicating that TOC was a key soil property affecting the level and fate of PAHs in sediments. The isomeric ratios and factor analysis revealed that PAHs in the Luqiao sediments were originated from mixed sources, and combustion source was dominant. Six sampling sites had the mean PAH ERL quotient>1, indicating that some sediments inLuqiaomay have potential ecological risk. The toxic benzo[a]pyrene equivalents (TEQ_(BaP)) of the 16 PAHs ranged from~3.41 μg/kg to 485μg/kg,98.4% of which was contributed by 7 carcinogenic PAHs, indicating that 7 PAHs were the main influential factors to the ecological risk |
|
来源
|
环境科学
,2010,31(1):153-158 【核心库】
|
|
关键词
|
沉积物
;
多环芳烃
;
来源
;
生态风险
|
|
地址
|
1.
上海大学环境与化学工程学院环境污染与健康研究所, 上海, 200444
2.
环境保护部斯德哥尔摩公约履约办公室, 北京, 100035
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
0250-3301 |
|
学科
|
环境科学基础理论 |
|
基金
|
国家自然科学基金重点项目
;
国家科技支撑计划项目
;
上海大学创新基金项目
|
|
文献收藏号
|
CSCD:3933834
|
参考文献 共
32
共2页
|
|
1.
Durant J L. Human cell mutagenicity of oxygenated, nitrated and unsubstituted polycyclic aromatic hydrocarbons associated with urban aerosols.
Mutation Research,1996,371(3/4):123-157
|
CSCD被引
43
次
|
|
|
|
|
2.
WHO.
Selected non-heterocyclic polycyclic aromatic hydrocarbons; Environmental Health Criteria 202,1998
|
CSCD被引
2
次
|
|
|
|
|
3.
Santodonato J. Review of the estrogenic and antiestrogenic activity of polycyclic aromatic hydrocarbons: Relationshipto carcinogenicity.
Chemosphere,1997,34(4):835-848
|
CSCD被引
31
次
|
|
|
|
|
4.
Neff J M. Estimation of polycyclic aromatic hydrocarbon concentrations in thewater column based on tissue residues inmussels and salmon: An equilibrium partitioning approach.
Environmental Toxicology and Chemistry,1996,15(12):2240-2253
|
CSCD被引
6
次
|
|
|
|
|
5.
杨敏. 辽河沉积物中多环芳烃的污染水平与特征.
环境化学,2007,26(2):217-220
|
CSCD被引
18
次
|
|
|
|
|
6.
许士奋. 长江和辽河沉积物中的多环芳烃类污染物.
中国环境科学,2000,20(2):128-131
|
CSCD被引
72
次
|
|
|
|
|
7.
刘敏. 长江口潮滩表层沉积物中多环芳烃分布特征.
中国环境科学,2001,21(4):343-346
|
CSCD被引
58
次
|
|
|
|
|
8.
冯精兰. 长江武汉段不同粒径沉积物中多环芳烃(PAHs)分布特征.
环境科学,2007,28(7):1573-1577
|
CSCD被引
13
次
|
|
|
|
|
9.
Xu J. Polycyclic aromatic hydrocarbons in the surface sediments fromYellowRiver, China.
Chemosphere,2007,67(7):1408-1414
|
CSCD被引
22
次
|
|
|
|
|
10.
Li G C. Distribution and sources of polycyclic aromatic hydrocarbons in the middle and lower reaches of the Yellow River, China.
Environmental Pollution,2006,144(3):985-993
|
CSCD被引
40
次
|
|
|
|
|
11.
刘宗峰. 黄河口表层沉积物多环芳烃污染源解析研究.
环境科学研究,2008,21(5):79-84
|
CSCD被引
27
次
|
|
|
|
|
12.
麦碧娴. 珠江三角洲河流和珠江口表层沉积物中有机污染物研究—多环芳烃和有机氯农药的分布及特征.
环境科学学报,2000,20(2):192-197
|
CSCD被引
132
次
|
|
|
|
|
13.
罗孝俊. 珠江及南海北部海域表层沉积物中多环芳烃分布及来源.
环境科学,2005,26(4):129-134
|
CSCD被引
57
次
|
|
|
|
|
14.
Shen C F. Identification of Ah receptor agonists in soil of E-waste recycling sites from taizhou area in China.
Environmental Science&Technology,2008,42(1):49-55
|
CSCD被引
12
次
|
|
|
|
|
15.
Chan K Y. Body loadings and health risk assessment of polychlorinated dibenzo-p-dioxins and dibenzofurans at an intensive electronic waste recycling site in China.
Environmental Science&Technology,2007,41(22):7668-7674
|
CSCD被引
2
次
|
|
|
|
|
16.
Zhao G F. PCBs and OCPs in human milk and selected foods from Luqiao and Pingqiao in Zhejiang, China.
Science of the Total Environment,2007,378(3):281-292
|
CSCD被引
9
次
|
|
|
|
|
17.
Jiang Y F. Levels, composition profiles and sources of polycyclic aromatic hydrocarbons in urban soil of Shanghai, China.
Chemosphere,2009,75(8):1112-1118
|
CSCD被引
38
次
|
|
|
|
|
18.
ZakariaM P. Distribution of Polycyclic AromaticHydrocarbons (PAHs) in rivers and estuaries inMalaysia: a widespread input of petrogenic PAHs.
Environmental Science & Technology,2002,36(9):1907-1918
|
CSCD被引
59
次
|
|
|
|
|
19.
Boonyatumanond R. Distribution and origins of polycyclic aromatic hydrocarbons (PAHs) in riverine, estuarine, and marine sediments in Thailand.
Marine Pollution Bulletin,2006,52(8):942-956
|
CSCD被引
31
次
|
|
|
|
|
20.
Liu Y. Distribution and sources of polycyclic aromatic hydrocarbons in surface sediments of rivers and an estuary in Shanghai China.
Environmental Pollution,2008,154(2):298-305
|
CSCD被引
26
次
|
|
|
|
|
了解气象卫星更多信息，请访问