各种农药对人畜鱼贝类等都有不同程度的毒性。其毒性大小常用致死中量(LD50)来表示,即使供试动物半数致死所需要的剂量,一般以毫克/公斤体重作为计算单位。毒性大小与致死中量数值成反相关。根据农牧渔业部、卫生部颁发的《农药安金使用规定》,对目前农业生产上常用农药(原药) A variety of pesticides on fish, shellfish, etc. have varying degrees of toxicity. The toxicity of the commonly used lethal dose (LD50) to indicate that, even if the test animals required lethal dose, the general mg / kg body weight as a unit of measurement. The magnitude of toxicity is inversely related to the median lethal dose. According to the Ministry of Agriculture, Animal Husbandry and Fisheries, Ministry of Health issued the “Regulations on the use of pesticides Anjin”, the current agricultural production commonly used pesticides (original drug)