Clinical Respiratory Symptoms and Spirometric Parameters among Tile Manufacturing Factory Workers, Yazd, Iran

Abstract

Respiratory diseases are one of the most common occupational diseases as well as the main cause of the work absence (1). Occupational dust exposure can cause lung diseases such as bronchitis and asthma (2,3). Long term exposure with respirable dust in the workplaces is a main risk factor for chronic lung diseases and many respiratory disorders (4). Studies had shown that the respiratory disorders incidence caused by occupational exposure were between 4.5 and 19% (5,6). Among the tile industries worldwide, tiles industry is among the industries where workers