Occurrence and characterization of selected organochlorine contaminants in outdoor dust collected from Xinxiang,a fast developing city in North China |
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| Authors: | Yongfang Li Zhongzhi Yang Xiaoduo Kong Guangjie He |
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| Institution: | (1) College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, China;(2) Xinxiang Medical University, Xinxiang, Henan, 453003, China;(3) Hebi College of Vocation and Technology, Hebi, Henan, 458030, China;(4) Department of Public Health, Xinxiang Medical University, Xinxiang, Henan, 453003, China; |
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| Abstract: | As facile “environmental media”, the outdoor dust may reflect the changes of contaminants in environment more promptly. In
the present study, selected organochlorine contaminants (OCs) include hexachlorocyclohexanes (HCHs), dichlorodiphenyltrichloroethanes
(DDTs), hexachlorobenzene (HCB), and pentachlorobenzene (PeCB) were detected in 20 outdoor dust samples collected from Xinxiang
City. The concentrations of ΣHCHs, ΣDDTs, HCB, and PeCB in dust were in the range of 0.18–5.05 ng/g dry weight, 0.44–13.50 ng/g
dry weight, 0.13–51.61 ng/g dry weight and ND-0.74 ng/g dry weight, respectively. Long-range transport, historical use, and
recent impact of impure pesticides might be the main sources of OCs in the outdoor dust. The results of this study indicated
that impure pesticide application maybe an important source of DDTs and HCB in the environment. |
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