BHC AND DDT RESIDUES OF SOME RICE CROPS AND SOILS IN THE PHILIPPINES

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概要

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• Rice seed, plant, and soil samples from the provinces of Iloilo, Bulacan, Nueva Ecija, the Mountain Province, and Palawan in the Philippines were analyzed for the presence of the four BHC isomers (α, γ, β, δ) and of DDT. Low levels of the four BHC isomers were detected in all the samples. The plants generally had a higher BHC content than the soil. The amounts of γ-BHC found in the grain and hull were the tolerance limit set by the United States Food and Durg Administration.DDT and its metabolites were identified in Palawan and the Mountain Province. The presence of DDT in the samples could have been due to the contamination from the DDT sprayed for malaria control in the dwelling places where the rice was stored.

• 社団法人日本土壌肥料学会の論文

著者

• Del Rosario

  The International Rice Research Institute

• YOSHIDA Tomio

  (Present address)National Institute for Environmental Studies

関連論文

• BHC AND DDT RESIDUES OF SOME RICE CROPS AND SOILS IN THE PHILIPPINES
• GROWTH OF AZOLLA IN PADDY FIELD AS AFFECTED BY PHOSPHORUS FERTILIZER

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