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预防化学物质所引起职业中毒的中心环节,是控制毒物在人类环境中分布的数量,即在空气、水、食物、物体表面上的毒物数量,故制订环境中这些有害物质的容许浓度极其重要。除了制定空气中有害物质的容许浓度,例如最高容许浓度(MAC)、阈限值(ACGIH)、容许接触水平(OSHA)、保护健康的职业接触推荐限值(WHO)等,尚应该制定固体/粉尘净化标准、污染物
The central task of preventing chemical poisoning from occupational poisoning is to control the amount of poisons distributed in the human environment, that is, the amount of poisons on the surface of air, water, food and objects. Therefore, it is very important to set the allowable concentration of these harmful substances in the environment. In addition to setting allowable concentrations of harmful substances in the air, such as MAC, ACGIH, OSHA, and occupational exposure limits (WHO), there is a need to develop a solid / Dust purification standards, pollutants