OPEN ACCESS

Articles online

Variation in the Chemistry of Aerosols in Two Different Winter Seasons at Pune and Sinhagad, India

Category: Articles

Volume: 5 | Issue: 1 | Pages: 115-126
DOI: 10.4209/aaqr.2005.06.0008
PDF | RIS | BibTeX

Pramod Digambar Safai , Pasumarti Surya Prakasa Rao, Gafur Abulal Momin, Kaushar Ali, Dilip Motiram Chate, Puppala Siva Praveen, Panuganti China Sattilingam Devara

  • Indian Institute of Tropical Meteorology, Pune-411008, India

Abstract

Samples of Total Suspended Particulates (TSP) were collected at Pashan, Pune (semi-urban) and Sinhagad (rural) locations in India, during the winter season of 2003/4, using a high volume air sampler and were analyzed for major water-soluble chemical components using Ion Chromatograph and Atomic Absorption Spectrophotometer. Results of the study were compared with those reported for the same locations in winter season, about two decades back. It was observed that TSP and all of its chemical components showed marked increase in concentrations after the period of two decades at both Pune and Sinhagad. Especially, for NH4+, SO42-, NO3- and Ca2+, the concentrations increased by about 9, 7,7 and 4 times at Pune and about 23,10,10 and 6 times at Sinhagad, respectively. This feature shows the significant impact of anthropogenic activities at both the locations. SO42- is still the main acidifying component of aerosols and NH4+ dominates over Ca2+ in the neutralization of acidity in 2003/4 whereas earlier two decades back, Ca2+ was the major neutralizer.

Keywords

TSP Chemical composition Acidity Neutralization potential


Related Article

Chemical Composition of PM2.5 Based on Two-Year Measurements at an Urban Site in Beijing

Guoyuan Hu, Junying Sun, Yangmei Zhang , Xiaojing Shen, Yun Yang
Volume: 15 | Issue: 5 | Pages: 1748-1759
DOI: 10.4209/aaqr.2014.11.0284
PDF

Critical Emissions from the Largest On-Road Transport Network in South Asia

Saroj Kumar Sahu , Gufran Beig, Neha Parkhi
Volume: 14 | Issue: 1 | Pages: 135-144
DOI: 10.4209/aaqr.2013.04.0137
PDF

Ambient Air Quality during Diwali Festival over Kolkata – A Mega-City in India

A. Chatterjee , C. Sarkar, A. Adak, U. Mukherjee, S.K. Ghosh, S. Raha
Volume: 13 | Issue: 3 | Pages: 1133-1144
DOI: 10.4209/aaqr.2012.03.0062
PDF

Exploring the Variation between EC and BC in a Variety of Locations

Gbenga Oladoyin Salako, Philip K. Hopke , David D. Cohen, Bilkis A. Begum, Swapan K. Biswas, Gauri Girish Pandit, Yong-Sam Chung, Shamsiah Abd Rahman, Mohd Suhaimi Hamzah, Perry Davy, Andreas Markwitz, Dagva Shagjjamba, Sereeter Lodoysamba, Wanna Wimolwattanapun, Supamatthree Bunprapob
Volume: 12 | Issue: 1 | Pages: 1-7
DOI: 10.4209/aaqr.2011.09.0150
PDF
;