Title |
Assessment of DDT and Metabolites in Soil and Sediment of Potentially Contaminated Areas of Belém, Amazon Region, Brazil
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Published in |
Bulletin of Environmental Contamination and Toxicology, April 2017
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DOI | 10.1007/s00128-017-2090-x |
Pubmed ID | |
Authors |
Andreia Oliveira Rodrigues, Larissa Costa de Souza, Cássia Christina da Silva Rocha, Amilton Cesar Gomes da Costa, Rosivaldo de Alcântara Mendes |
Abstract |
The aim of this study was to evaluate the distribution of DDT and metabolites in surface soils and soil profiles from two areas containing deposits of obsolete pesticides in Belém, Amazon Region, Brazil. DDT and metabolites were extracted by microwave assisted extraction and analyzed by gas chromatography with electron capture detection. Concentrations of total DDT in surface soil samples ranged from 64.22 mg kg(-1) in area 1 (A1) to 447.84 mg kg(-1) in area 2 (A2). Lower levels were found in soil profiles than at the surface (6.21-21.17 mg kg(-1) in A1 and 36.13-113.66 mg kg(-1) in A2). pp'-DDT, pp'-DDE and pp'-DDD were detected in sediments at levels of 2.01, 0.96 and 0.35 mg kg(-1), respectively. The ratio (DDE + DDD)/ΣDDT was low indicating the recent introduction of DDT to the environment in the two study areas, through the volatilization and atmospheric deposition of the obsolete pesticides. |
X Demographics
Geographical breakdown
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 24 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 5 | 21% |
Student > Master | 5 | 21% |
Student > Bachelor | 3 | 13% |
Student > Doctoral Student | 2 | 8% |
Professor | 2 | 8% |
Other | 4 | 17% |
Unknown | 3 | 13% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 7 | 29% |
Environmental Science | 4 | 17% |
Chemistry | 4 | 17% |
Pharmacology, Toxicology and Pharmaceutical Science | 1 | 4% |
Engineering | 1 | 4% |
Other | 0 | 0% |
Unknown | 7 | 29% |