Study of Organochlorine Pesticides in Soil from Eco-Geochemical Surveys in Shandong Province
详细信息
- 责任者：Dai Jierui (Shandong Institute of Geological Survey ; Jinan 250013 ; China) ; Gao Zongjun
- 刊名：Geology and Prospecting
- 出版年：2013
- 卷期：49(3)
- 关键词：农药 ; pesticides ; 生态地球化学 ; ecological geochemistry ; 山东 ; Shandong Province
- 页码：p.534-540
- 图表：illus., 3 tables, 12 refs.
- 分类号：1800
- issnNo：ISSN0495-5331
- isbnNo：CN11-2043/P
摘要
Based on a comprehensive eco-geochemical survey in Yantai and southwestern Shandong Province (SSP), this paper studies the pesticides residual and the content of DDTs and HCHs in soil. The results show that the detection rate of DDTs and HCHs in the soil of SSP is apparently higher than Yantai. However, the mean content of DDTs and HCHs in the soil of Yantai is 9 and 25 times higher than that of SSP, respectively, and significantly higher than many other cities and areas. The p,p′-DDE is the main pesticide residual form in the soil of SSP, which is considered as the degradation products of DDTs in oxidation environment in the past. However, 5.52% of the soil in Yantai city still has few DDTs input recently, which has posed a big impact on soil environment quality. The β-HCH is the main form of 4 isomers of HCHs in Yantai city, and α-HCH/γ-HCH in SSP is low. It is revealed that the HCHs in soil of these two areas has a long residual time. The preliminary analysis indicates that the risk of DDTs and HCHs in soil of SSP is relatively low, while the risk of DDTs in soil of Yantai city is still of a certain level.
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