Assessment of DDT and Metabolites in Soil and Sediment of Potentially Contaminated Areas of Belém, Amazon Region, Brazil

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 chromato...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2017-07, Vol.99 (1), p.125-130
Main Authors: Rodrigues, Andreia Oliveira, de Souza, Larissa Costa, da Silva Rocha, Cássia Christina, da Costa, Amilton Cesar Gomes, de Alcântara Mendes, Rosivaldo
Format: Article
Language:English
Subjects:
Agrochemicals
Aquatic Pollution
Atmospheric pollution deposition
Beta decay
Brazil
Chromatography, Gas
DDD
DDE
DDT
DDT - analysis
Deposition
Deposits
Earth and Environmental Science
Ecotoxicology
Electron capture
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring
Extraction
Gas chromatography
Hydrocarbons, Chlorinated - analysis
Metabolites
Nitrous oxide
Pesticides
Pesticides - analysis
Pollution
Sediments
Soil - chemistry
Soil contamination
Soil Pollutants - analysis
Soil profiles
Soil properties
Soil Science & Conservation
Soil surfaces
Soils
Toxicity
Volatilization
Waste Water Technology
Water Management
Water Pollution Control
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Summary: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.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-017-2090-x