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Document ID (ISN)68535
CIS number 97-154
ISSN - Serial title 1351-0711 - Occupational and Environmental Medicine
Year 1995
Convention or series no.
Author(s) Ostiguy G., Vaillancourt C., Bégin R.
Title Respiratory health of workers exposed to metal dusts and foundry fumes in a copper refinery
Bibliographic information Mar. 1995, Vol.52, No.3, p.204-210. 51 ref.
Abstract Cross-sectional and longitudinal (7 years) survey of 494 long-term workers in a copper refinery, carried out from medical questionnaires, chest radiographs and forced spirometry, to assess respiratory health hazards in these workers. The prevalence of chronic obstructive pulmonary diseases (COPD) and small airway disfunction (SAD) was 5% and 7%, which did not differ from the control population. The COPD and SAD were associated with cumulative smoking index. The mean reduction of forced expiratory volume in one second (FEV1) was 20(7)mL in non-smokers, 26(4)mL in smokers and 26(5)mL in ex-smokers. In the smokers and ex-smokers with COPD, the loss of FEV1 was 53(10). The prevalence of pleural plaques was 11% in older workers with known exposure to asbestos. The data suggest that low level long-term exposure to metal dusts, gases and foundry fumes does not necessarily cause respiratory dysfunction, circumscribed pleural plaques with low grades of width and extent do not reduce forced vital capacity (FVC) significantly and, finally, exposure to asbestos dust that produced pleural plaques does not necessarily produce airway dysfunction.
Descriptors (primary) casting of metals; copper; metals; foundries; respirable dust; metal fumes; health hazards; respiratory diseases
Descriptors (secondary) asbestos; smoking; pleural diseases; asbestosis; chest radiography; questionnaire survey; cross-sectional study; long-term study; spirometry; length of service
Document type D - Periodical articles
Country / State or ProvinceCanada
Subject(s) Dust, aerosols and related diseases
Broad subject area(s) Chemical safety
Browse category(ies) Diseases of the respiratory system (except for pneumoconiosis & similar)
Foundries, metalcasting and forging operations
Copper and compounds
Inorganic substances