“…Consequently, there have been very few longitudinal studies of occupational risks [Arndt et al, 2005]. This study is based on results from a medical surveillance program with 16 years of experience to assess risk of chronic obstructive pulmonary disease (COPD), occupational lung disease, and hearing loss over a working lifetime.Construction workers are at an elevated risk for several chronic medical conditions, including COPD, pneumoconiosis consisting primarily of asbestosis and silicosis, and noise-induced hearing loss [Dement et al, 2003[Dement et al, , 2005[Dement et al, , 2009[Dement et al, , 2010. Occupational exposure to the general category of "vapors, gases, dusts, and fumes" (VGDF) has been associated with increased COPD risk [Becklake, 1989; National AMERICAN JOURNAL OF INDUSTRIAL MEDICINE 57:1235-1245 (2014 ß 2014 Wiley Periodicals, Inc. American Thoracic Society, 2005;Balmes, 2005; Blanc et al, 2009a,b; Global Initiative for Chronic Obstructive Lung Disease, 2013].…”