The brass metal workers are affected by the flakes of brass during making of brass made utensils that causes the decrement as well as impairments of pulmonary functions. The aim of the present study is to evaluate the pulmonary function status of the workers engaged in manufacturing of brass made utensils and polishing.

In Kolkata city the road transports are maintained by private and Government organization. A major work force belonged to the State Transport Corporation (KSTC), Government of West-Bengal. The pollution caused by these vehicles affects the workers health and caused different types of respiratory problems.