Author(s): Vijay Sharma, Pankaj Saini, Sudhanshu Kaushik, Mahadev Semwal, B D Joshi
The present study was conducted to find out the impact of human activities during the festival of light, i.e. Deepawali, on ambient air quality. Four parameters viz. RSPM, SPM, SO2 and NO2 were studied for non-festive and festive days during Deepawali at two busy intersections of Haridwar city namely; Ranipur More and Singh Dwar. Noise levels were also monitored for both sites with the help of Sound Level Meter. The concentration of RSPM was found 13.64% higher on festive day as compared to the non festive day at the study site of Ranipur More crossing point, whereas 17.63% increase was found on festive days at Singh Dwar crossing point. Similarly, the SPM values increased by 12.47% and 13.73%, on festive day at Ranipur More and Singh Dwar, respectively. The concentration of SO2 were found 32.93% and 51.84% higher on festive day at Ranipur More and Singh Dwar, respectively. While the concentration of NO2 was found to have increased by 10.68% and 12.87%, during the festive day as compared to non festive day at Ranipur More and Singh Dwar, respectively. The results of noise monitoring show an enhanced pressure of noise during the festival of light. The average noise level on festive day show a rise of 23.6% and 16.1% as compared to non-festive day, respectively for Ranipur More and Singh Dwar, respectively.