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nature : Value of acute pesticide toxicity determining the size of the target. Its toxicity value to the rat oral lethal dose LD50 dollars, the unit of mg / kg (body weight). According to the numerical size, to show the level of toxic pesticides. States grading standards are not identical. But in general are relatively close. China's Ministry of Health on pesticide formulation of the acute toxicity following the provisional classification standard. Standards include oral, dermal and inhalation of three. Just past the acute oral toxicity of pesticide toxicity to the demarcation of rank, for a comprehensive evaluation of a pesticide such term is not comprehensive. On the production poisoning, from skin contact or inhalation of the possibility. Although some pesticides acute oral toxicity, but by the skin toxicity was minimal and will not affect the safe use.
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