TY - JOUR
T1 - Levels of polychlorinated dibenzo-p-dioxins and dibenzofurans in mountainous and park soils in Beijing, China
AU - Li, Wei
AU - Li, Chaoqin
AU - Chen, Zuosheng
AU - Ding, Naixiu
AU - CAI, Zongwei
N1 - Funding Information:
Financial support was provided by Shandong Doctoral Foundation in China (2008BS06014) and Faculty Research Grant (FRG2/10-11/029) from Hong Kong Baptist University.
PY - 2014/5
Y1 - 2014/5
N2 - Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were analysed in 95 mountainous and park soil samples collected from 19 sites in Beijing, China. The levels of PCDD/Fs in the mountainous soils were low (0.086-0.59; mean 0.29; median 0.23 ng I-TEQ/kg). The levels in the park soils far from the city centre were a little higher (0.39-0.88, mean0.68; median 0.75 ng I-TEQ/kg). However, in the park soils near to the city centre, there were an abrupt jump in their concentration (1.7-3.2; mean 2.3, median 1.7 ng I-TEQ/kg), about ten times higher than those in the mountainous sites. Comparison of PCDD/Fs homologues and congener compositions between possible sources and samples indicated that the mountainous and park soils in Beijing had been slightly contaminated mainly by sodium pentachlorophenate, sewage sludge, atmospheric deposition and vehicle exhaust. These results have also been supported by the principal component analysis.
AB - Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were analysed in 95 mountainous and park soil samples collected from 19 sites in Beijing, China. The levels of PCDD/Fs in the mountainous soils were low (0.086-0.59; mean 0.29; median 0.23 ng I-TEQ/kg). The levels in the park soils far from the city centre were a little higher (0.39-0.88, mean0.68; median 0.75 ng I-TEQ/kg). However, in the park soils near to the city centre, there were an abrupt jump in their concentration (1.7-3.2; mean 2.3, median 1.7 ng I-TEQ/kg), about ten times higher than those in the mountainous sites. Comparison of PCDD/Fs homologues and congener compositions between possible sources and samples indicated that the mountainous and park soils in Beijing had been slightly contaminated mainly by sodium pentachlorophenate, sewage sludge, atmospheric deposition and vehicle exhaust. These results have also been supported by the principal component analysis.
KW - Beijing
KW - contamination source
KW - PCDD/Fs
KW - soils
UR - http://www.scopus.com/inward/record.url?scp=84900342561&partnerID=8YFLogxK
U2 - 10.1080/03067319.2014.891106
DO - 10.1080/03067319.2014.891106
M3 - Journal article
AN - SCOPUS:84900342561
SN - 0306-7319
VL - 94
SP - 691
EP - 711
JO - International Journal of Environmental Analytical Chemistry
JF - International Journal of Environmental Analytical Chemistry
IS - 7
ER -
