| Summary: | 碩士 === 高雄醫學院 === 公共衛生學研究所 === 85 === In addition to the rubber, the major ingredient to make the
rubber tires, it is needed to add a great variety of organic
and inorganic chemical agents to improve the quility of rubber
tires. Most of the additives are in powder form. During the
tire production processes, dusts, fumes and vapors, which are
generated from those additives, enter and precipitate in the
worker's respiratory duct and lung, then became a potential
health hazard to the worker's respiratory system. the purpose
of this study is to assess the health effects of respiratory
system fot the rubber tire manufacturing workers and explore
relative hazardous fcctors. 119 rubber workers and 119 control
workers employed by the same plant in central Taiwan
weresurveyed. By using a constructive questionnaire to
investigte the prevalence of respiratory symptoms. The lung
function test was performed to check the lung function. The
results showed that rubber workers had higher prevalences of
cough, phlegm, wheezing and dyspnea than control group, but
there were no significant excess. For non-respiratory symptoms,
the prevalence of skin itching was significantly different
between two groups. The lung function test revealed that
exposure to the dusts, fumes and vapors was a significant
factor to decrease FEV1/FVC, FE F50, FEF75 and FEF25-75. The
abnormal type of lung function for all workers was restrictive
ventilation dysfunction. Age and previous respiratory illness
are two hazardous factors significantly related to abnormal
lung function. Overall, the study indicate that dusts, fumes
and vapors of the airborne contaminants in the rubber industry,
cause adverse effects to the lung function but they a re not
significant association with abnormality of respiratory system.
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