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Effect of Duration of Exposure to Cement Dust on Respiratory Function of Non-Smoking Cement Mill Workers
Department of Physiology, College of Medicine, King Saud University, P.O. Box 2925, Riyadh, 11461, Kingdom of Saudi Arabia
Department of Physiology, Faculty of Health and Medical Sciences, Hamdard University, Karachi-74600, Pakistan
Department of Physiology, Dewan Medical College, Karachi-74900, Pakistan
* Author to whom correspondence should be addressed.
Received: 24 December 2012; in revised form: 5 January 2013 / Accepted: 10 January 2013 / Published: 16 January 2013
Abstract: This study aimed to determine the effect of long term exposure to cement dust on lung function in non-smoking cement mill workers. This is a cross-sectional study of respiratory functions. Spirometry was performed in 100 apparently healthy volunteers; 50 non-smoking cement mill workers and 50 non-smoking un-exposed subjects. Based on the duration of exposure, cement mill workers were divided into three groups, less than 5, 5–10 and greater than 10 years. All subjects were individually matched for age, height, weight, and socioeconomic status. Pulmonary function test was performed by using an electronic spirometer. Significant reduction was observed in the mean values of Forced Vital Capacity (FVC), Forced Expiratory Volume in one second (FEV1), Peak Expiratory Flow (PEF) and Maximal Voluntary Ventilation in cement mill workers who had been working in the cement industry for more than 10 years compared to their matched un-exposed group. Lung functions in cement mill workers were significantly impaired and results show a long term duration response effect of years of exposure to cement dust on lung functions.
Keywords: air pollution; cement dust; lung function; occupational hazards
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MDPI and ACS Style
Meo, S.A.; Al-Drees, A.M.; Al Masri, A.A.; Al Rouq, F.; Azeem, M.A. Effect of Duration of Exposure to Cement Dust on Respiratory Function of Non-Smoking Cement Mill Workers. Int. J. Environ. Res. Public Health 2013, 10, 390-398.
Meo SA, Al-Drees AM, Al Masri AA, Al Rouq F, Azeem MA. Effect of Duration of Exposure to Cement Dust on Respiratory Function of Non-Smoking Cement Mill Workers. International Journal of Environmental Research and Public Health. 2013; 10(1):390-398.
Meo, Sultan A.; Al-Drees, Abdul M.; Al Masri, Abeer A.; Al Rouq, Fawzia; Azeem, Muhammad A. 2013. "Effect of Duration of Exposure to Cement Dust on Respiratory Function of Non-Smoking Cement Mill Workers." Int. J. Environ. Res. Public Health 10, no. 1: 390-398.