The source of DDT and its metabolites contamination in Turkish agricultural soils
The source of DDT and its metabolites contamination in Turkish agricultural soils
复制标题
DOI：
10.1007/s10661-012-2616-y
复制
发表时间：
2012
影响因子：
3
通讯作者：
C. Turgut;T. Cutright;S. Mermer;L. Atatanır;Nalan Turgut;Melis Usluy;O. Erdoğan
中科院分区：
文献类型：
--
作者：
C. Turgut;T. Cutright;S. Mermer;L. Atatanır;Nalan Turgut;Melis Usluy;O. Erdoğan
预计1,1,1-三氯-2,2-二（4-氯苯）-乙烷（DDT）及其代谢物（DDE: 1,1-二氯-2,2-二（4-氯苯）乙烯）的浓度和对环境的影响在1980年代中期被禁止后会减少。不幸的是，滴滴涕作为一种杂质存在于三氯醇（2,2,2-三氯-1,1-二（4-氯苯）乙醇）中，导致了一种新的污染源。在土耳其Söke平原的棉花生产中尤其如此，那里使用的是基于双福尔的杀虫剂。本研究的目的是调查滴滴涕在棉花土壤中的污染程度和来源。Söke选取0 ~ 30cm、30 ~ 60cm和60 ~ 90cm深度的平原土壤样品，采用GC/MS/MS进行分析。0 ~ 30 cm土层中，p′-DDTandp、p′- ddep的检出率分别为16.2%和17.6%。在30 ~ 60 cm土壤样品中发现p， p′-滴滴涕（14.9%）、o, p′-DDE（8.1%）和p， p′-DDE(2.7%)，其中p， p′-DDT最常见，占9.5%。滴滴涕的主要来源，特别是在60 - 90厘米深度，是由于滴滴涕的历史使用。表土中存在p，p ' -DDE,o, p ' -DDE和p，p ' - ddde是由于最近使用了二敌畏。
The concentration and impact of 1,1,1-trichloro-2,2-bis(4-chlorophenyl)-ethane (DDT) and its metabolites (DDE: 1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene) on the environment was expected to decrease after its ban in the mid-1980s. Unfortunately, DDT contamination via its presence as an impurity in dicofol (2,2,2-trichloro-1,1-bis(4-chlorophenyl)ethanol) has led to a new source of contamination. This is particularly true especially in cotton production in Söke Plain, Turkey, where difocol-based pesticides are being used. The aim of this research was to investigate the extent and source of DDT contamination in cotton soils. Söke Plain soil samples were collected from 0–30, 30–60, and 60–90-cm depth and analyzed by GC/MS/MS.o,p′-DDTandp, p′-DDEwere detected at 16.2 % and 17.6 % of the sites in the 0–30-cm depth of soils. In the 30–60 cm,p, p′-DDT(14.9 %),o, p′-DDE(8.1 %) andp, p′-DDE(2.7 %) were found in soil samples, andp, p′-DDTwas the most prevalent with 9.5 % of the sampling sites. The dominant source of DDT particularly in the 60–90-cm depth was due to historic use of DDT. The presence ofp, p′-DDE,o, p′-DDEandp,p′-DDTin the topsoil was attributed to recent dicofol applications.