从国内外文献报导及对粮食加工厂工人的职业卫生调查结果都显示了接触高浓度粮谷尘的粮工的上呼吸道,眼、咽、鼻等粘膜有相当比例的阳性症状及慢支、慢咳等患病率增高,与对照组比较,显示小气道功能的肺功能指标均有明显的下降,有部分工人接触谷尘后有谷物热等急性症状发生。为了进一步 According to the reports from domestic and foreign literature and the occupational health survey of workers in food processing plants, the proportion of upper respiratory tract, eye, pharynx and nasal mucosa exposed to high concentration of grain and dust is quite high in positive symptoms and chronic bronchitis. Cough and other increased prevalence, compared with the control group, showed small airway function of lung function indicators were significantly decreased, some workers have contact with grain dust after the occurrence of acute symptoms such as cereal fever. To further