K.B. Budhavant 1,2, P.S.P. Rao1, P.D. Safai1, R.D. Gawhane1, M.P Raju1, C.M. Mahajan2, P.G. Satsangi3

  • 1 Indian Institute of Tropical Meteorology, Pune, India
  • 2 Vishwakarma Institute of Technology, Pune, India
  • 3 Department of Chemistry, University of Pune, (null), India

Received: December 15, 2011
Revised: March 28, 2012
Accepted: March 28, 2012
Download Citation: ||https://doi.org/10.4209/aaqr.2011.12.0233  

  • Download: PDF

Cite this article:
Budhavant, K., Rao, P., Safai, P., Gawhane, R., Raju, M., Mahajan, C. and Satsangi, P. (2012). Atmospheric Wet and Dry Depositions of Ions over an Urban Location in South-West India. Aerosol Air Qual. Res. 12: 561-570. https://doi.org/10.4209/aaqr.2011.12.0233



Wet deposition (WD) and Dry deposition (DD) samples were collected during a period of 4 year (2006 to 2009), at four different sites representing different surroundings around Pune city in southwest India. The samples were collected on a daily basis for WD and weekly basis for DD. These samples were analyzed for major ionic components e.g. Cl, NO3, SO42−, Na+, K+, NH4+, Ca2+ and Mg2+. Both the WD and DD were alkaline (pH > 5.6) at all the four sites. The WD fluxes of all the ionic components were higher than the DD fluxes, except at the traffic junction Swargate, where majority of the species appeared with much higher DD fluxes than WD fluxes (68% for NO3, 63% for Ca2+, 60% for Mg2+, 57% for K+). WD flux of NH4+ is higher (64–80%) than the DD flux at three locations and slightly lower (48%) at a high altitude location. In case of sea salt (Na and Cl), WD fluxes were higher (63–90%) than the DD fluxes at all the four locations. The dominant ion in DD was NO3 at Pashan (semi-urban) and Sinhagad (high altitude), Ca2+ at Swargate (traffic junction) and SO42− at Bhosari (industrial). The difference in deposition fluxes between the four sites was attributed to the effect of the local sources. Deposition velocities of SO42− and NH4+ were < 1 cm/s while Ca2+, Mg2+, Na+, K+, NO3, and Cl exhibited deposition velocities ≥ 1 cm/s. At one of the sites Pashan, where the earlier data is available; DD rates showed increase in all the chemical components, except for NH4+ after a period of about 2 decades.

Keywords: Dry deposition; Long-range transport; Soil dust; Anthropogenic sources; Deposition velocity

Share this article with your colleagues 


Subscribe to our Newsletter 

Aerosol and Air Quality Research has published over 2,000 peer-reviewed articles. Enter your email address to receive latest updates and research articles to your inbox every second week.

77st percentile
Powered by
   SCImago Journal & Country Rank

2022 Impact Factor: 4.0
5-Year Impact Factor: 3.4

Aerosol and Air Quality Research partners with Publons

CLOCKSS system has permission to ingest, preserve, and serve this Archival Unit
CLOCKSS system has permission to ingest, preserve, and serve this Archival Unit

Aerosol and Air Quality Research (AAQR) is an independently-run non-profit journal that promotes submissions of high-quality research and strives to be one of the leading aerosol and air quality open-access journals in the world. We use cookies on this website to personalize content to improve your user experience and analyze our traffic. By using this site you agree to its use of cookies.