|Abstract Title:||Aerosols Characterization during the Holi festival in Dehradun: Foothills of the Himalayas, India|
|Session Choice:||Monitoring Techniques: Particulate|
|Presenter Name:||Mr vignesh prabhu|
|Co-authors:||Mr Ashish Soni|
Mrs Pooja panwar
Dr Vijay Shridhar
Abstract Information :
In this study, Partisol 2300 speciation sampler and ICP-OES were used for determining the mass and elemental composition of fine particulate matter (PM2.5) during Holi festival week 13th March 2014 to 20th March 2014 at Dehradun, India. Chemical analysis for 15 elements (Fe, Ni, Cr, Mn, Cu, Zn, Cd, As, Pb, Na, K, Al, Mg, Sb and Ca) were carried out with the collected samples (n=8). The order of concentration of chemical species during holi festival days were K>Fe>Na>Mn>Mg>Cr>Zn>Ca>Al>Cu>As>Pb>Ni>Sb>Cd. Aethalometer was used for determining the Black Carbon (BC) concentration and percentage of black carbon contributed by the biomass burning (BB). The average mass concentration of PM2.5 and BC during holi festival week (pre-Holi (3 days), holi(holi festival days) (2 days) and post-holi (3 days)) period was found to be 41.58, 68.61, 42.96 µg/m3 and 4.97 ±1.89, 7.61 ±2.37, 3.20 ±2.46 µg/m3 respectively. The percentage of BC contributed by BB during pre-Holi, Holi and post-Holi period was 15.05 %, 18.20 % and 17.24 %. On analyzing the concentration of PM2.5, BC, surface ozone (O3), oxides of nitrogen (NOx) during the sampling period, substantial increase in concentration was observed during Holi from pre-Holi period.