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农药原药无法直接使用,必须加工成制剂才能应用到农业生产。农药制剂在原药的基础上,通过加入分散剂、助剂以及溶剂等原辅料,经研制、复配、加工而制成。近年来,我国农药制剂年产量约200万吨,其中乳油产量约占50%,使用溶剂30万～40万吨,其中绝大部分是苯、甲苯、二甲苯等高挥发性芳烃。去年10月,工信部发布《农药乳油有害溶剂限量标准》,对二甲苯、甲苯、苯、甲醇和N,N’-二甲基甲酰胺等5种有害溶剂
The original pesticide can not be used directly, it must be processed into preparations to be applied to agricultural production. Pesticide formulations on the basis of the original drug, by adding dispersants, additives and solvents and other raw and auxiliary materials, through the development, compounding, processing and made. In recent years, China’s pesticide preparations annual output of about 2000000 tons, of which about 50% of the production of EC, the use of solvents 300000 ~ 400000 tons, most of them benzene, toluene, xylene and other volatile aromatics. In October last year, the Ministry of Industry and Information Technology issued the “Limitation Criteria for Harmful Solvents of Pesticide Emulsifiable Concentrates”, five kinds of harmful solvents such as xylene, toluene, benzene, methanol and N, N’-dimethylformamide