MMWR Morb Mortal Wkly Rep. 1991 Mar 1;40(8):142-3.
CDC's National Institute for Occupational Safety and Health (NIOSH) periodically issues alerts on workplace hazards that have caused injury, illness, or death to workers. Three alerts are now available about the serious hazards posed by skylights and roof openings, manure pits, and the organic solvent dimethylformamide (DMF). Each alert is summarized briefly below.
美国疾病控制与预防中心（CDC）的国家职业安全与健康研究所（NIOSH）定期发布有关已导致工人受伤、患病或死亡的工作场所危害的警报。目前有三份关于天窗和屋顶开口、粪坑以及有机溶剂二甲基甲酰胺（DMF）所构成的严重危害的警报。每份警报的简要内容如下。
