Pollution assessment, distribution and sources of PAHs in agricultural soils of Pearl River Delta - The biggest manufacturing Base in China.

Pollution assessment, distribution and sources of PAHs in agricultural soils of Pearl River Delta - The biggest manufacturing Base in China. Research Abstract Details 

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Pollution assessment, distribution and sources of PAHs in agricultural soils of Pearl River Delta - The biggest manufacturing Base in China. Abstract Text:

Yongtao Li,Fangbai Li,Tianbin Zhang,Guoyi Yang,Junjian Chen,Hongfu Wan,Yongtao Li,Fangbai Li,Tianbin Zhang,Guoyi Yang,Junjian Chen,Hongfu Wan,Yongtao Li,Fangbai Li,Tianbin Zhang,Guoyi Yang,Junjian Chen,Hongfu Wan,

A large scale of soil survey was performed to determine the contents, distributions and sources of 16 polycyclic aromatic hydrocarbons (PAHs) in 231 agricultural soils under 3 land-use types from 5 regions of the subtropical Pearl River Delta (PRD). The average sum of 16 PAHs in all soil samples is 316.5 mu g.kg(-1), with range from ND to 4079 mug.kg(-1). Three- and 4-ring PAHs are the most abundant PAHs that contribute to 73.0% of total contents. The most abundant components are phenanthrene, benzo(b)fluoranthene and fluoranthene. ANOVA and principal component analyses (PCA) indicate that soil samples from Dongguan and Zhongshan contain greater PAHs than other regions. More abundant carcinogenic and higher molecular weight PAHs accumulated in soils from Dongguan and Zhongshan, while higher low molecular weight PAHs were in soils from Guanghzou, Huizhou and Shunde. Soil PAHs from 3 land uses are not statistically different. Additionally, 5 PAH compound ratios suggest that soil PAHs in PRD derived from mixture of pyrogenic and petrogenic sources, but the majorities are pyrogenic sources. PAHs were further identified as mixture of petroleum combustion and grass, wood, and coal combustion. Some soil PAHs were revealed vehicle emission, coal soot and petroleum sources. The 5 regions showed different PAHs sources according to some compound ratios, but no marked distinction between regions from 2 banks of the Pearl River because of major wind direction, distribution of riverway and industry.

Pollution assessment, distribution and sources of PAHs in agricultural soils of Pearl River Delta - The biggest manufacturing Base in China. Publishing Authors By Initials

Y Li,F Li,T Zhang,G Yang,J Chen,H Wan,Y Li,F Li,T Zhang,G Yang,J Chen,H Wan,Y Li,F Li,T Zhang,G Yang,J Chen,H Wan,

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Pollution assessment, distribution and sources of PAHs in agricultural soils of Pearl River Delta - The biggest manufacturing Base in China. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of environmental science and health. Part

VOLUME: 42

Page Numbers: 1979-87

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ISSN: 1093-4529

DAY: 8

MONTH: Nov

YEAR: 2007

Pollution assessment, distribution and sources of PAHs in agricultural soils of Pearl River Delta - The biggest manufacturing Base in China. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Pollution assessment, distribution and sources of PAHs in agricultural soils of Pearl River Delta - The biggest manufacturing Base in China.

AFFILIATION: College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China.

Country: United States

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MEDLINETA: J Environ Sci Health A Tox Haz

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