DocumentCode :
2685514
Title :
Polycyclic Aromatic Hydrocarbons in Surface Soils of a University Campus: Concentrations, Distribution, Sources and Potential Risk
Author :
Lin, Chan ; Liu, Jingliang ; Wang, Renmin ; Wang, Yu ; Huang, Bin ; Pan, Xuejun
Author_Institution :
Fac. of Environ. Sci. & Eng., Kunming Univ. of Sci. & Technol., Kunming, China
fYear :
2012
fDate :
28-30 May 2012
Firstpage :
1598
Lastpage :
1601
Abstract :
The concentrations, distribution, possible sources and the potential risk of polycyclic aromatic hydrocarbons (PAHs) in surface soils were studied in Kunming University of Science and Technology, situated in Kunming, China. 15 PAHs were analysed in 6 surface soil samples (0-5 cm layer) collected from six types of land uses in the university campus. Meanwhile, the potential sources of PAHs in surface soils have been investigated by PAH composition ratios and isomer ratios. The total concentrations of 15 PAHs ranged from 272.1 to 2,521.6 ng/g (dry weight basis), and different land uses followed the increasing order of teaching area (272.1 ng/g) <; Baini Hill (752.8 ng/g) <; canteen area (1,323.6 ng/g) <; teacher residential area (1,562.2 ng/g) <; student dormitory area (1,916.9 ng/g) <; school gate (2,521.2 ng/g). The results of sources identification suggested that PAHs in surface soils of Kunming urban area were greatly affected by combustion activities and mainly from coal combustion and vehicular traffic. In addition, the toxic equivalency factors (TEFs) were used to estimate benzo[a]pyrene-equivalent concentration in surface soils of Kunming, which indicated a potential risk to human health.
Keywords :
coal; combustion; educational institutions; health hazards; land use planning; risk management; soil pollution; toxicology; Baini Hill; China; Kunming University of Science and Technology; Kunming urban area; PAH composition ratio; TEF; benzo[a]pyrene-equivalent concentration; canteen area; coal combustion; combustion activity; human health risk; isomer ratio; land use; polycyclic aromatic hydrocarbon; school gate; student dormitory area; surface soil; teacher residential area; toxic equivalency factor; university campus; vehicular traffic; Combustion; Educational institutions; Hydrocarbons; Soil; Standards; Surface soil; USA Councils; PAHs; different functional zones; source diagnosis; toxic equivalent;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Engineering and Biotechnology (iCBEB), 2012 International Conference on
Conference_Location :
Macau, Macao
Print_ISBN :
978-1-4577-1987-5
Type :
conf
DOI :
10.1109/iCBEB.2012.299
Filename :
6245442
Link To Document :
بازگشت