Abstract
Aim: To study the Lung functions test in stone Quarry workers. Materials & methods: The study was carried on 100 workers. 50 young males 20-35 yrs old, non smoking workers without any pre existing cardio-pulmonary disorders, exposed to silica dust for duration of 1-20yrs in a stone quarry worker in Rayachoty area, served as subjects. Another 50 males who were similar in all aspects to the study group, not exposed to silica dust professionally at any time, served as controls. Results: FVC, FEV1, PEFR & FVC % were highly significant and lower in stone quarry workers. FEV6 is significantly lower compared with controls Conclusion: Exposure to these substances, hitherto unaccustomed, led to development of a new set of disorders which can now be classified under 'Occupational Diseases'. Occupational exposure to silica dust leads to development of various pulmonary disorders, by sinosis begin most important of them.
