Air is one the major source for all living organisms to sustain on the earth. Nowadays due to heavy traffic and industrial population most of the cities are affected by air pollution. In this research the Marudhamalai Hill Shrine was selected as the study area to monitor the air quality in its vicinity. Marudhamalai is located on the Western Ghats in Coimbatore district. It is famous for the Murugan temple located on it as people from Coimbatore and other parts of India visit every year. From the results it was clear that the forest surrounding the hill shrine not have medicinal plants but these plants help in to maintain the air quality parameters resulting in the quality to be within the prescribed limits.

Keywords : Air Quality Monitoring, PM10, SO2, NO2, Marudhamalai