Abstract: Dust lung disease is mainly distributed in coal, non-ferrous, machinery, building materials, light industry and other industrial industries. The patient suffers lung lesions due to long-term inhalation of dust. Dust lung disease is one of the main occupational diseases. Accident cause theory is an effective method of analyzing accidents. Next, the cause theory of accident will be used to analyze the causes, passages and consequences of pneumoconiosis.<br>Keywords: Accident Cause Theory Pneumoconiosis
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