Abstract: This paper presents the seasonal analysis reports of the chemistry of rainwater, surface water and fog of Bhubaneswar city for three years, i.e., July 2008 to June 2011. In this study 838 rain water samples, 342 fog samples and 658 surface water samples have been collected from twelve different areas such as, Acharya Vihar, Saheed Nagar, Bapuji Nagar, Forest Park, Nalco Chhak, Sailashree Vihar, Patia, Chandaka Forest range, Baramunda, Khandagiri, Palaspalli and Kausalyaganga. The present study reports about the occurrence of acid rain, formation of fog and smog and their rate of contamination to the surface water changing its pH and nutrient content. The water sample collected from Acharya Vihar, Bapuji Nagar and Kausalyaganga area were found to be highly acidic in nature (pH < 5.2). It has been observed that pH of the rain water varies within the range of 4.3 to 5.0 and fog water sample in the range of 4.2 to 4.8 respectively. It has been found that the water sample obtained from other areas are slightly acidic in nature where the pH of the surface water remains in the range of 5.5 to 5.8. It has been observed that the water sample in high acidic area is found to be more loaded with heavy metal in comparison to the water obtained from low acidic area. A correlation has been established by the critical analysis of both the water samples (atmospheric and surface).
Keywords: Acidification, physico-chemical properties, fog sample, rainwater, surface water, contamination
