期刊
ENVIRONMENTAL POLLUTION
卷 216, 期 -, 页码 500-511出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2016.05.089
关键词
Organochlorine pesticides; Soil property; Mass inventory; Risk assessment; Campanian Plain
资金
- China Scholarship Council
- Ministero dell'Universita e della Ricerca Scientifica [PON01_01966, 01/Ric. 18.1.2010]
- agricultural biomasses cultivated in a sustainable way in Campania region (BioPoliS) [PON03PE_00107_1]
- Natural Environment Research Council [ceh010010] Funding Source: researchfish
The distribution, inventory, and potential risk of organochlorine pesticides (OCPs), including Hexachlorocyclohexanes (HCHs) and Dichlorodiphenyltrichloroethanes (DDTs), and their correlation with soil properties and anthropogenic factors were investigated in soils of the Campanian Plain. The total concentrations of HCHs and DDTs ranged from 0.03 to 17.3 ng/g (geometric mean: GM = 0.05 ng/g), and 0.08 -1231 ng/g (GM = 14.4 ng/g), respectively. In general, the concentration of OCPs in farmland and orchards was higher than on land used for non-agricultural purposes. There are significant differences in the concentration of OCPs in the soils across the region, more specifically, the Acerra-Marigliano conurbation (AMC) and Sarno River Basin (SRB) are recognized as severely OCP-contaminated areas. The recent application of technical HCHs and DDTs in large quantities appears unlikely in light of the ratio of alpha-HCH/beta-HCH and p,p'-DDT/p,p'-DDE, and the prohibition of the use of these chemicals in Italy nearly forty years ago. The clear correlation between the concentration of DDTs and organic carbon suggests a typical secondary distribution pattern. The mass inventory of OCPs in soils of the Campanian Plain is estimated to have a GM of 17.3 metric tons. There is no clear evidence linking the impact of geographical distribution of OCPs on the incidence of cancer, and the 95% confidence interval of total incremental lifetime cancer risk (TILCR) data falls below the internationally accepted benchmark value of 1 x 10(-5). (C)2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据