背景目前，我国职业危害重点仍然是化学毒物、噪声与粉尘等职业有害因素。

BackgroundAt present, chemicals, noise and dusts still are main occupational hazards in workplaces.

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在制药生产中常使用大量的有机溶剂，生产工艺过程中有机溶剂属于化学性危险和有害因素。

Large amount of organic solvents, which are within the scope of chemical dangerous and hazardous substances, are used in pharmaceutical production.

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