Variation in Total Ozone Content and Solar UV Index Over a High Altitude Station Bangalore for a Decade 2006-2015:A Qualitative Review

Bangalore is the third most populous cities of India with a total population of over 11.5 million. This city has witnessed a huge growth in its population between years 2001 (5.1 million)   to 2016(11.5 million). Bangalore lies approximately at a height of 3000 ft. above sea level and positioned at 12.96⁰N, 77.56⁰E latitude and longitude. Because of its elevation it enjoys cool climatic conditions yearlong when compared to other stations in India. However huge increase in population enhances urbanization which leads to severe anthropogenic activity in this station. Keeping this in view an attempt was made to study the incoming solar ultraviolet radiation for the period 2006-2015 and its impact if any on this station. It is observed that the UV Index at Bangalore has a minimum value of 9.15 and a maximum value of 13.4 for this decade 2006-2015. This indicates that the city is receiving maximum ultraviolet radiation with high to very high risk. Keeping this in view measures need to be taken for safeguarding the people of Bangalore from ultraviolet radiation.