Effects of rush-mat dust on the health of exposed workers

To evaluate the effect of exposure to rush-mat dust on the health of workers. A cross sectional study of 661 workers (349 men, 312 women) from 35 rush-mat plants was carried out by using occupational health investigation, questionnare and physical examination. The geometric mean total dust concentra...

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Published inZhonghua laodong weisheng zhiyebing zazhi Vol. 20; no. 2; p. 90
Main Authors Xiao, Guobing, Wang, Renyuan, Xu, Lairong, Ma, Zaohua, Zhang, Xing, Zhou, Chenglai, Kishimoto, Takumi, Morinaga, Kenji, Kohyama, Norihiko
Format Journal Article
LanguageChinese
Published China 01.04.2002
Subjects
Aluminum Silicates
Chemical Industry
Cross-Sectional Studies
Dust
Female
Humans
Male
Occupational Exposure - adverse effects
Pneumoconiosis - etiology
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Summary:To evaluate the effect of exposure to rush-mat dust on the health of workers. A cross sectional study of 661 workers (349 men, 312 women) from 35 rush-mat plants was carried out by using occupational health investigation, questionnare and physical examination. The geometric mean total dust concentration in the workshop was up to 20.00 mg/m3, and the geometric mean respirable dust concentration reached 8.22 mg/m3. The mean free SiO2 concentration of accumulated dust was 25.6%. The prevalence of radiographic small opacities profusion category > or = 1/0, according to the China Classification for pneumoconiosis (GB 5906-2000), and compared with the ILO 1980 system, was 2.57%. Even more, one man had category 2 pneumoconiosis with progressive massive fibrosis. However, the incidence of pneumoconiosis (1/0 at least) was correlated with work duration and dust concentration(r = 1.156, P < 0.001; r = 0.106, P = 0.006, respectively). Some positive correlations were found between the incidence of cough or expectoration
ISSN:1001-9391