TY - JOUR
T1 - PCDD/PCDF pollution in soils and sediments from the Pearl River Delta of China
AU - Zhang, Sukun
AU - Peng, Ping'an
AU - Huang, Weilin
AU - Li, Xiaoming
AU - Zhang, Gan
N1 - Funding Information:
The authors thank Dr. Jianzhong Song for his assistance in sample collection. This study was funded by the Department of Science and Technology of Guangdong Province (Contract No 2002A3040102).
PY - 2009/5
Y1 - 2009/5
N2 - This study reported detection of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) for 62 soil samples and 3 sediment samples collected from the Pearl River Delta, a rapidly industrialized and highly populated area of South China. The results show that the PCDD/F concentrations ranged from 97.6 to 9,600 ng kg-1 and that the average total concentrations of PCDD/Fs are 1311, 2504, 1320 and 2335 ng kg-1 (dw), and 1.24, 3.99, 4.80 and 2.63 ng WHO1998-TEQ kg-1 for the samples collected from remote mountains, suburban areas, industrial areas, and residential/commercial areas, respectively. The WHO1998-TEQ values calculated for 17 soil samples are higher than 4 ng kg-1 but lower than 20 ng kg-1, whereas the WHO1998-TEQ values calculated for the remaining 45 samples are lower than 4 ng kg-1. According to the Canada soil quality guideline, the PCDD/F concentrations in 27.4% of the tested soil samples in this study are greater than the Canadian background concentrations, and the PCDD/F concentrations for the remaining soil samples (73.6%) are lower than the Canadian background concentration.
AB - This study reported detection of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) for 62 soil samples and 3 sediment samples collected from the Pearl River Delta, a rapidly industrialized and highly populated area of South China. The results show that the PCDD/F concentrations ranged from 97.6 to 9,600 ng kg-1 and that the average total concentrations of PCDD/Fs are 1311, 2504, 1320 and 2335 ng kg-1 (dw), and 1.24, 3.99, 4.80 and 2.63 ng WHO1998-TEQ kg-1 for the samples collected from remote mountains, suburban areas, industrial areas, and residential/commercial areas, respectively. The WHO1998-TEQ values calculated for 17 soil samples are higher than 4 ng kg-1 but lower than 20 ng kg-1, whereas the WHO1998-TEQ values calculated for the remaining 45 samples are lower than 4 ng kg-1. According to the Canada soil quality guideline, the PCDD/F concentrations in 27.4% of the tested soil samples in this study are greater than the Canadian background concentrations, and the PCDD/F concentrations for the remaining soil samples (73.6%) are lower than the Canadian background concentration.
KW - China
KW - PCDD/Fs
KW - Sediments
KW - Soils
KW - The Pearl River Delta
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U2 - 10.1016/j.chemosphere.2009.02.032
DO - 10.1016/j.chemosphere.2009.02.032
M3 - Article
C2 - 19307012
AN - SCOPUS:67349233017
SN - 0045-6535
VL - 75
SP - 1186
EP - 1195
JO - Chemosphere
JF - Chemosphere
IS - 9
ER -