Nasal and ocular effects in foundry workers using the hot box method.
JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE(2011)
摘要
Objective: To investigate the prevalence of nasal and ocular symptoms and nasal signs in foundry workers exposed to monoisocyanates using the Hot Box method. Methods: Forty-three foundry workers and 69 referents completed questionnaires and were examined by a rhinologist. Exposure to isocyanic acid, methyl isocyanate, formaldehyde, and total dust was measured. Results: Nasal symptoms and signs were associated with exposure, and dose-response relationships between nasal symptoms and exposure to isocyanic acid, methyl isocyanate, and formaldehyde were observed. Dry nasal mucosa was more prevalent in exposed workers than in referents. These findings were not substantially affected by the exclusion of asthmatic and allergic individuals, smokers, or females. Conclusions: An increased prevalence of nasal symptoms and signs was observed among exposed workers, suggesting an association with the foundry environment involving monoisocyanates and other airway irritants, such as formaldehyde and dust.
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关键词
ocular effects,foundry workers,hot box method,nasal
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