γ-BHC在稻田土壤和水稻上的残留及异构化

The Residue and the Isomerization of γ-BHC in the Paddy and the Farmland

γ-BHC在稻田土壤和水稻上有不同程度异构化为α、β、δ-BHC的趋势,但强度不大,其异构化程度随土壤的基本理化性状和水稻植株各部位的差异而不同.由此推断,在正常使用的情况下,γ-BHC不至于因其异构化而构成对农田土壤与水稻的污染危害.

There is a tendency that 7-BHC of the paddy and the farmland can isomers intoα、β、δ-BHC. The intensity of the isomerization is very low.The degrees of the isomerization vary with the basic properties of the farmland and the position of the paddy. So it is deduced that r-BHC doesn't endanger the paddy and the farmland due to the isomerization in the ordinary uses.