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本文对某厂１５个黄麻粉尘观察点１年的监测，其结果：麻尘年均浓度为２４．６ｍｇ／ｍ~３（３９２个样品），时间加权平均浓度为３．４ｍｇ／ｍ~３，接尘工人自觉症状以气短、咳嗽、胸部紧束感为主要表现。慢性鼻炎、咽炎和慢支的患病率分别为１５．７４％、２８．２４％、１５．２８％，与对照组差异显著（Ｐ＜０．０５），且随工龄的延长而增高。ＦＶＣ和ＦＥＶ＿１有明显下降，提示有慢性肺功能损害。麻尘接触水平与慢支患病率之间呈正相关（ｒ＝０．９３４２），当慢支患病率控制在１５％时，发病年限为３０年。黄麻粉尘最高容许浓度的建议值为４ｍｇ／ｍ~３。
In this paper, the monitoring of 15 jute dust observation points in a factory for one year was carried out. The results showed that the annual average concentration of dust was 24.6mg / m ~ 3 (392 samples), the time-weighted average concentration was 3.4mg / m ~ Dust workers conscious symptoms to shortness of breath, cough, chest tight bundle sense as the main performance. The prevalence rates of chronic rhinitis, pharyngitis and chronic bronchitis were 15.74%, 28.24% and 15.28%, respectively, which were significantly different from the control group (P <0.05). FVC and FEV_1 significantly decreased, suggesting chronic lung injury. There was a positive correlation between the level of dust exposure and the prevalence of chronic bronchitis (r = 0.9342). When the prevalence of chronic bronchitis was controlled at 15%, the disease duration was 30 years. Jute dust maximum allowable concentration of the recommended value of 4mg / m ~ 3.