|Document ID (ISN)||68535|
|ISSN - Serial title
||1351-0711 - Occupational and Environmental Medicine
|Convention or series no.
||Ostiguy G., Vaillancourt C., Bégin R.
||Respiratory health of workers exposed to metal dusts and foundry fumes in a copper refinery
||Mar. 1995, Vol.52, No.3, p.204-210. 51 ref.
||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.
||casting of metals; copper; metals; foundries; respirable dust; metal fumes; health hazards; respiratory diseases
||asbestos; smoking; pleural diseases; asbestosis; chest radiography; questionnaire survey; cross-sectional study; long-term study; spirometry; length of service
||D - Periodical articles
|Country / State or Province||Canada|
||Dust, aerosols and related diseases
|Broad subject area(s)
||Diseases of the respiratory system (except for pneumoconiosis & similar)
Foundries, metalcasting and forging operations
Copper and compounds