Among air pollutants, particulate matter (PM) is one of the well known causes of respiratory diseases in human all over the world and has become a major problem of developing countries of South Asia such as Pakistan. A research based survey was conducted to find out PM effects on respiratory health of brick kiln workers in Jalalpur Jattan, Gujrat, Pakistan. Lung function of 156 workers employed in brick kilns, using spirometer by recording FVC, FEV1 and FEV1%, was examined during working hours. FVC and FEV1 were significantly lower than predicted for brick kiln workers and...