Distribution of DDT in a Typical DDT Waste Contaminated Site

Liu, Wenbin; Li, Changliang; Zheng, Minghui; Wang, Li; Li, Sumei; Ba, Te; Su, Guoshao; Gao, Lian; Zhang, Lifei

doi:10.1007/s00128-008-9362-4

Cited by 8 publications

(6 citation statements)

References 9 publications

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“…The lack of significant correlation in the topsoil could be attributed to aerobic biodegradation and migration further in the subsurface. Under aerobic conditions DDT is biodegraded to DDE, which is more persistent (Van Zwieten et al 2003;Liu et al 2008;Gautam and Suresh 2006;Megharaj et al 2000) while it is biodegraded to DDD under unaerobic conditions (Mitra et al 2001;Van Zwieten et al 2003;Yang et al 2008). The absence of o,p′-DDT in conjunction with presence of o,p′-DDE indicates aerobic degradation occurred.…”

Section: Resultsmentioning

confidence: 99%

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The source of DDT and its metabolites contamination in Turkish agricultural soils

Turgut

Cutright

Mermer

et al. 2012

Environ Monit Assess

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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'-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.

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Section: Resultsmentioning

confidence: 99%

“…US consumption had peaked at 80,000 tons by the mid-1960s (Pham et al 1996). China produced 0.4 million tons of DDT from 1950 until its ban in 1983 making it responsible for 20 % of the world's DDT production (Liu et al 2008;Yang et al 2008). However, DDT was not only used to control malaria.…”

Section: Introductionmentioning

confidence: 99%

The source of DDT and its metabolites contamination in Turkish agricultural soils

Turgut

Cutright

Mermer

et al. 2012

Environ Monit Assess

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“…In South Africa, the special application as an indoor residual spray applied 2 g m À2 DDT on indoor wall (Humphries, 2013). The residual concentrations of DDT and its metabolites in some natural soils, sediments, and contaminated sites are still high (Liu et al, 2008). And there is evidence of new point sources: For instance, dicofol and antifouling paint, continues to contribute to DDT concentrations in various environmental compartments (Guo et al, 2009;Jia et al, 2011).…”

Section: Introductionmentioning

confidence: 96%

The interactive biotic and abiotic processes of DDT transformation under dissimilatory iron-reducing conditions

Jin

Wang

et al. 2015

Chemosphere

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“…In the mid-1960s, approximately 80,000 tons of DDT was applied to the environment in the United States [20]. It has been stated that China was responsible for 20% of the total global production of DDT between 1950 and1983 [11,17,33]. DDT was banned in the United States in the early 1970s, and 10 years later DDT was also banned in Turkey,however, DDT has been used in sub-Saharan Africa until recently [22,27,29].…”

Section: Introductionmentioning

confidence: 99%

The uptake modeling of DDT and its degradation products (o,p′-DDE and p,p′-DDE) from soil

2020

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Dichloro-diphenyl-trichloroethane (DDT) has been extensively used to control malaria during World War II as well as the other agricultural pests. DDT persists in the environment and accumulates in many living organisms. Also, the degradation products of DDT, which have also a similar chemical structure, could pose the same risk to the environment and human health. Measuring DDT and its degradation products in the environment could be challenging and costs money and time. Thus, modeling is an alternative method used by researchers to estimate the environmental relevant levels of the contaminants. The present study estimates the uptake levels of DDT and its degradation products i.e. o,p′-DDE and p,p′-DDE by crop-specific models (e.g. root, potato, leafy vegetables, cereal, fruit-tree models) in the root, potato, leaves, fruit, cereal, and water compartments by using the known environmental concentrations of DDT and its degradation products (µg kg −1) in soil sampled from Soke, Aydin. According to the crop-specific model results, predicted accumulation levels of DDT and its degradation products were found mainly in leafy vegetables, roots, cereals, and potato. The highest concentration levels were found in leafy vegetables in soil, followed by root, cereals, and potato respectively; however, leaves, fruits, and water had a low amount of accumulation of DDT and its degradation products. Further models are needed to evaluate risk assessment of the environmental compounds to human health and the environment.

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Distribution of DDT in a Typical DDT Waste Contaminated Site

Cited by 8 publications

References 9 publications

The source of DDT and its metabolites contamination in Turkish agricultural soils

The source of DDT and its metabolites contamination in Turkish agricultural soils

The interactive biotic and abiotic processes of DDT transformation under dissimilatory iron-reducing conditions

The uptake modeling of DDT and its degradation products (o,p′-DDE and p,p′-DDE) from soil

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