Source Apportionment of Polycyclic Aromatic Hydrocarbons in Agricultural Soils of Yanqing County in Beijing, China

Autor:	Shunjiang Li, Zhao Liping, Chengjun Zhang, Xin-Rong Li, Tongke Zhao, Peng Li
Rok vydání:	2013
Předmět:	Fluoranthene Anthracene Multimedia fugacity model Management Monitoring Policy and Law Phenanthrene Fluorene chemistry.chemical_compound chemistry Environmental chemistry Soil water Environmental science Pyrene Waste Management and Disposal Arithmetic mean
Zdroj:	Environmental Forensics. 14:324-330
ISSN:	1527-5930 1527-5922
DOI:	10.1080/15275922.2013.843613
Popis:	Guanting Reservoir in Yanqing County is a strategic drinking-water resource for Beijing, China. The agricultural soil samples (0 cm to 20 cm) were collected to determine the concentration, compositional profiles, and sources of polycyclic aromatic hydrocarbons (PAHs) surrounding the reservoir. The average measured PAH concentration was 140 ± 85.7 μg kg−1 (CV = 0.45) (dry weight or dw; n = 48; shown as arithmetic mean and standard deviation), which is lower than most of the results reported in literature. The PAH compositional profiles were dominated by 3- and 4-ring compounds, particularly phenanthrene (PHE), fluoranthene (FLA), fluorene (FLO), and pyrene (PYR). The PAH sources were estimated by analyzing the corrected ratios of isomeric PAH species derived using the multimedia fugacity model and principal component analysis/multiple linear regression (PCA/MLR). The corrected isomeric ratios of FLA/(FLA+PYR) and anthracene (ANT)/(ANT+PHE) indicate that combustion processes are the major sources of PAHs in...
Databáze:	OpenAIRE
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