Respiratory symptoms and ventilatory functions among quarry workers in Edo state, Nigeria

  • Alphonsus Rukevwe Isara
  • Vincent Yakubu Adam
  • Adesuwa Queen Aigbokhaode
  • Innocent Osi Alenoghena

Abstract

Introduction: Workers in the quarry industries are exposed to hazards resulting from the inhalation of air borne particulates. The study determined the prevalence of respiratory symptoms and assessed ventilatory functions among quarry workers in Edo state, Nigeria Methods: Quarry workers (site workers and office workers) were interviewed using structured questionnaire. FEV1, FVC, FEV1/FVC and PEFR were measured using a KoKo Legend spirometer. Results: A total of 113 quarry workers (76 exposure and 37 controls) were studied. The exposure group had significantly higher occurrence of chest tightness (35.5%) compared with 16.2% of the controls (p < 0.05). The occurrence of cough (23.7% versus 13.5%), sputum (21.1% versus 16.2%), and dyspnoea (7.9% versus 5.4%), were higher in exposure groups while wheeze (10.8% versus 10.5%) and nasal congestion (27.0% and 25.0%) were higher in the control groups. The mean (SD) FEV1, and FVC were significantly lower among the exposure compared with the control group; 2.77L (0.73) versus 3.14L (0.78), p < 0.05, and 3.48L (0.84) versus 3.89L (0.92), p < 0.05. In both groups, smokers had significantly lower mean (SD) FEV1, FVC and PEFR compared with non-smokers; 2.91L (0.77) versus 3.39L (0.69), p = 0.01, 3.61L (0.91) versus 4.26L (0.74), p < 0.05 and 6.56L (2.43) versus 7.98L (1.67), p < 0.05. Conclusion: Chronic exposure to quarry dust is associated with respiratory symptoms and reduced lung function indices among quarry workers. The enforcement of the use of PPEs and periodic evaluation the lung function status of quarry workers is advocated.

Pan African Medical Journal 2016; 23

Author Biographies

Alphonsus Rukevwe Isara
Department of Community Health, University of Benin Teaching Hospital, P. M. B. 1111, Benin City, Nigeria
Vincent Yakubu Adam
Department of Community Health, University of Benin Teaching Hospital, P. M. B. 1111, Benin City, Nigeria
Adesuwa Queen Aigbokhaode
Department of Community Health, University of Benin Teaching Hospital, P. M. B. 1111, Benin City, Nigeria
Innocent Osi Alenoghena
Department of Community Health, University of Benin Teaching Hospital, P. M. B. 1111, Benin City, Nigeria
Published
2016-07-15
Section
Articles

Journal Identifiers


eISSN: 1937-8688