UPPSC 2012 General Studies I Solved Paper

(b) Asbestos dust affects the lungs,which can cause fibrotic lung diseases and changes in the lining of the chest cavity. Lead affects the brain particularly. Young children are vulnerable to the toxic effects of lead. It affects the development of brain and nervous system. Mercury affects the stomach. It damages the digestive system. Carbon monoxide affects the blood stream.It prevents the blood system from effectively carrying oxygen around the body, specially to the vital organs such as the heart and the brain.