Dichlorodiphenyl trichloroethane (DDT) in soil and sediment samples at different locations of Dhaka city in Bangladesh
2007
Zaman, M.A. (Chittagong Univ. (Bangladesh). Dept. of Soil Science) | Ullah, S.M. (Dhaka Univ. (Bangladesh). Dept. of Soil, Water and Environment) | Osman, K.T. (Chittagong Univ. (Bangladesh). Dept. of Soil Science) | Chowdhury, M.A.Z. (Atomic Energy Research Establishment, Dhaka (Bangladesh). Inst. of Food and Radiation Biology)
Twelve surface soils from paddy field and fourteen sediment samples from lake and river at different locations of Dhaka city were collected during premonsoon transition and rainy seasons. Dichlorodiphenyl Trichloroethane (DDT) was measured using ELISA (Enzymed-Linked Immuno Sorbent Assay) method. All soil (0.001-0.038 ppm) and sediment samples (0.0013-0.040 ppm) except two lake sediments contained DDT. DDT contaminated the soil and sediment matrices of different locations where it was used for public health purposes. Clay and organic colloids seemed to be the carrier in transporting DDT from primary to secondary sources. Correlations were made between DDT and physicochemical properties of soil and sediment samples where positive relationship of DDT existed only with organic matter and clay content of both soil and sediments.
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