[Effects of rush-mat dust on the health of exposed workers].
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
; 20(2): 90-2, 2002 Apr.
Article
em Zh
| MEDLINE
| ID: mdl-14694618
ABSTRACT
OBJECTIVE:
To evaluate the effect of exposure to rush-mat dust on the health of workers.METHODS:
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.RESULTS:
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 and occupational exposure (r = 0.085, P = 0.028; r = 0.094, P = 0.016, respectively).CONCLUSION:
To our knowledge, this is the first report of rush pneumoconiosis in China. The results have offered the possibility of a dose-response relationship between rush-mat dust and pneumoconiosis. More investigation in this area is need.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pneumoconiose
/
Exposição Ocupacional
/
Poeira
Tipo de estudo:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Female
/
Humans
/
Male
Idioma:
Zh
Ano de publicação:
2002
Tipo de documento:
Article