尘肺可分为无机粉尘和有机粉尘所致的尘肺两大类。前者包括矽肺、煤肺、石棉肺、混合矽肺等,后者包括棉尘肺、禾物尘肺、蔗尘肺等。作者报告2例禾物尘肺患者均为农民,长期饲养牲畜,所用草料表面附有含二氧化矽的微细粉尘,当过筛滤尘时,粉尘飞扬,同时工怍场所狭小,通风条件差。在工作中长 Pneumoconiosis can be divided into inorganic dust and organic dust caused by pneumoconiosis two categories. The former includes silicosis, coal lung, asbestosis lung, mixed silicosis, etc., which include cotton pneumoconiosis, grain pneumoconiosis, sugarcane and pneumoconiosis. The authors reported 2 cases of pest and dust pneumoconiosis patients were farmers, long-term breeding of livestock, the use of forage on the surface with fine dust containing silica, when the filter dust, the dust flying, at the same time working place narrow, poor ventilation. Long at work