Distribution and source apportionment of polycyclic aromatic hydrocarbons in the surface soil of Baise, China.
作者： Bingfang Shi , Qilin Wu , Huixiang Ouyang , Xixing Liu , Jinlei Zhang
DOI: 10.1007/S10661-015-4465-Y
关键词:
摘要: To estimate the distribution and sources of polycyclic aromatic hydrocarbons (PAHs) in soils Baise, southwest China, soil sampling sites were selected from industry, traffic, rubbish, gas station, residential, suburban areas for analysis PAHs. The average concentrations ∑16PAHs present study varied significantly, depending on location, ranged 16.8 to 6,437.0 μg/kg (dry weight basis), with a mean value 565.8 μg/kg. PAH decreased significantly along industry–traffic–rubbish–gas station–residential–suburban transect. profiles surface different imply that either source proximity sites, or transport deposition effects influenced distributions. Two diagnostic ratios used apportion soil, bivariate plots show general trends covariation. Principal component multivariate linear regression determine primary their contributions PAHs soils. model showed factors 1 (coal wood combustion) 2 (petroleum contributed over 52.1 32.5 % total PAHs, respectively. remaining 15.4 % came evaporative uncombusted petroleum.
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