论文部分内容阅读
著者测定了四种农药对啮齿动物吸入LD_(50),并与经口 LD_(50)值做了比较。使用的农药包括三种胆碱能有机磷化合物和一种类除虫菊:1.敌死蜱(O,O-二乙基 O-(3,5,6-三氯-2-吡啶基)硫代磷酸酯。2.马拉硫磷[O,O-二甲基-S-(1,2-二乙氧酰基乙基)二硫代磷酸酯]。3.二溴磷[1,2-二溴-2,2-二氯乙基二甲基磷酸酯]。4.苄呋菊酯[(5-苄基-3-呋喃)甲基菊酸酯]。所用气溶胶,中位直径为1.5～2.0mμ,几何标准差为2.0。每一染毒柜内置大鼠8只或小鼠16只。采用全身接触法。实验结束后再观察14天以计算总死亡率。接触重复几次,每
The authors determined that LD_ (50) was inhaled by rodents by four pesticides and compared with the value of LD_ (50). Pesticides used include three cholinergic organophosphorus compounds and one pyrethrum: 1. Ethylpyridinium (O, O-diethyl O- (3,5,6-trichloro-2-pyridyl) phosphorothioate Ester 2. Malathion [O, O-dimethyl-S- (1,2-diethoxyethyl) phosphorodithioate] .3. Dichlormethyldimethylphosphate] .4. Resmethrin [(5-benzyl-3-furanyl) methyl chrysanthemate]. The aerosol used has a median diameter of 1.5 - 2.0mμ, the geometric standard deviation of 2.0 per rat poisoning cabinet built-in rats or 16 mice using systemic exposure method after the end of the experiment and then observed for 14 days to calculate the total mortality of contact repeated a few times each