A comparative histochemical study of lipids in the trachea and lungs of squirrel, Funambulus pennanti, exposed to three chief air-pollutants.

In the present investigation, a histochemical study of lipids have been made in the trachea and lungs of common ground squirrels exposed to three chief air-pollutants. Significant changes thus observed in pulmonary lipids have been correlated with altered mechanical properties of the lung and morphology. Supplementary biochemical findings made on total lipids indicate that CO ranks at the top effecting lipid contents of both trachea and lungs than are the SO2 and NO2 respectively. Physiological mechanism of damage has also been analysed.