The Source Of Ddt And Its Metabolites Contamination In Turkish Agricultural Soils
| Autor: | Cafer Turgut, Teresa J. Cutright, Nalan Turgut, Levent Atatanir, Oktay Erdoğan, Serhan Mermer, Melis Usluy |
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| Rok vydání: | 2013 |
| Předmět: |
Topsoil
Soil test Turkey Dicofol Soil chemistry Agriculture General Medicine Management Monitoring Policy and Law Pesticide Contamination Pollution DDT chemistry.chemical_compound Soil chemistry Environmental chemistry Soil water Ecotoxicology Soil Pollutants Pesticides Environmental Pollution Impurity General Environmental Science Environmental Monitoring |
| Popis: | 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 Soke 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. Soke Plain soil samples were collected from 0–30, 30–60, and 60–90-cm depth and analyzed by GC/MS/MS. o,p′-DDT and p, p′-DDE were 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 %) and p, p′-DDE (2.7 %) were found in soil samples, and p, p′-DDT was 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 of p, p′-DDE, o, p′-DDE and p,p′-DDT in the topsoil was attributed to recent dicofol applications. |
| Databáze: | OpenAIRE |
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