【摘要】 为了对稻区使用六六六的安全性作出全面评价,浙江农业大学农药残毒研究室与浙江医科大学农药研究室,在杜湖村实验基地对六六六在稻区各生态体系中的残留动态开展了研究。本文继续报导1980～1982年稻区使用六六六防治害虫时,各观察塘水质遭受污染后对塘内自养生物和异养生物构成要素的污染影响。试验结果表明塘内水生植物和水生动物体内六六六蓄积量随水质中的含量而波动。水生生物体内六六六蓄积的高峰期基本与水体污染的高峰期相吻合,同时也车各种水生生物体内发现δ体的特异变迁动态。更多还原

【Abstract】 When the xenobiotics enter into the biosphere they will join and give relation to different members of every ecosystem. The aquatic biological group will be contaminated when they are living in BHC Polluted water.In 1981-1982, research study was continued on. the behavior of pollution by BHC in aquatic plants and aquatic fauna at Du Hu Field Research station using fixed obseration ponds, when BHC was used to control rice pests, in the paddy field.The residual level of BHC within the aquatic plants through the absor- ption was related to the pollution of water closely. The high peak of absorption in the plants followed the high peak of pollution in the water, and the contamination descended quickly as the residual level in the water decreased .The contaminative behavior of aquatic fauna ( fishes, spiral shell and fresh water mussel etc ) in the observation ponds was expressed similarly as aquatic plants and related with the pollution of water. In the model test the half stage ( T1/2, days ) of BHC isomers within the spiral shell were; 0.89(δ isomer ) ; 1.19 (β isomer), 1.37 ( γ isomer ) and 1.60 ( a isomer). And Y isomer within the mouth breeder was 1.20 days.It indicated that the residual level of BHC in aquatic fauna whith was disappeared quickly is possible.The contamination of frog depend upon the residual level of pests which they are eating.The special behavior of 5 isomer in the percentage change was noticed in aquatic plants and aquatic fauna all the same to water.更多还原