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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zhou, Haifeng Pan, Guoqing Chen, Boqing Gao, Jun Wang, Jizhong |
| Spatial Coverage | China |
| Description | Country affiliation: China Author Affiliation: Gao J ( Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Department of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China. jgao@hyit.edu.cn) |
| Abstract | Contamination by organochlorine pesticides (OCPs), such as hexachlorobenzene (HCB), DDTs and hexachlorocyclohexane isomers (HCHs) was examined in surface soils from paddy, upland and wetland fields in the region around the Hongze Lake in 2009, and some factors influencing residual levels of OCPs in soils were analyzed. DDTs and HCHs were the predominant contaminants in soils. The residual levels of OCPs in cultivated soils were significantly higher than those of corresponding counterparts in wetland soils. It indicated the agricultural usage amount of OCPs principally accounted for the presence of their residues in soil. Among these organochlorines and their metabolites detected in the soil samples, ß-HCH and p, p'-DDE were the two dominant substances of HCHs and DDTs, respectively. The ratio of w(DDT)/w(DDD+DDE) and the ratio -HCH/γ-HCH also suggested residual HCHs and DDTs in soil resulted from technical HCH (no elimination of Lindane) and DDT applied in this region in the past and there has been no recent input. The analysis of linear correlation indicated that soil pH and TOC influenced the residues of -HCH and ß-HCH, respectively. The principal component analysis (PCA) showed the contents of OCPs in soils probably were related to their usage amount in the past and octanol-water coefficient (Kow). Compared with the corresponding data from other places and the protection guidelines of Netherlands, US EPA and China, the region around the Hongze Lake may be generally categorized as a slightly polluted area and it is suitable for agriculture production. |
| ISSN | 00489697 |
| Volume Number | 443 |
| e-ISSN | 18791026 |
| Journal | Science of The Total Environment |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2013-01-15 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Hydrocarbons, Chlorinated Analysis Lakes Pesticides Soil Pollutants China Factor Analysis, Statistical Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Waste Management and Disposal Pollution Environmental Engineering |
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