Author(s):
Manas Kanti Deb, Mithlesh Mahilang, Jayant Nirmalkar
Email(s):
mithleshkumarchem@gmail.com
Address:
School of Studies in Chemistry
Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, 492010, India
Indian Institute of Science Education and Research, Bhauri, Bhopal, Madhya Pradesh, 462066, India.
Published In:
Volume - 30,
Issue - 1,
Year - 2017
Cite this article:
Deb, Mahilang and Nirmalkar (2017). Regional and Transported A erosols in Ambient A tmosphere of Raipur,India, during W inter. Journal of Ravishankar University (Part-B: Science), 30(1), pp. 07-17.
Journal of Ravishankar
University-B, 30 (I &II), 7-17 (2017)
Regional and
Transported A erosols in Ambient A tmosphere of Raipur,India, during W inter
Manas Kanti Deb, Mithlesh
Mahilang and Jayant Nirmalkar
School of Studies in
Chemistry,
Pt. Ravishankar Shukla University,
Raipur, Chhattisgarh, 492010, India
Indian Institute of Science
Education and Research, Bhauri, Bhopal, Madhya Pradesh, 462066, India
Corresponding author: mithleshkumarchem@gmail.com
[Received 25 November 2017; revised version 02
January 2018; accepted 08 January 2018]
Abstract: Size fractionated
atmospheric aerosols were collected using cascade impactor sampler on quartz flter
substrate during October 2015 to February 2016 in campus of Pt Ravishankar
Shukla University of Raipur Chhattisgarh. The size of aerosol particles is of
crucial importance to several processes in the atmosphere. The relative
concentrations in both modes are responsible for the variability observed in
the shape of the size distribution. Characteristic size distributions of
measured aerosol over central India showed identifcation of three main
behaviour types during entire study period: (i) month in which bimodal size
distribution dominated in coarse mode (October 2015, 5 December 2015 and
January, 2016), (ii) those months in which bimodal distribution equally intense
in both one, and coarse modes (November, 2015) and (iii) those which were
mainly dominated within fine (February, 2016, December, 2015). The
two-subsequent month namely November 2015 and December 2015 shows bimodal size
distribution with dominance in fine size range in comparison to coarse mode,
possibly these high loading of one particles is due to long range transport.
The peculiar observation of air trajectory shows that there is increase in fine
particles concentration during December 2015, although there in increase in
temperature and wind speed. The reason for this high concentration is long
range transport of air masses. However, January has normal trend in particular
matter concentration. The important finding of the present study based on
characteristic size distribution and air trajectory plots accomplishes that fine
particles are obtained through long range transport whereas coarse particles
are mainly from local origin.
Keywords : Mass loading, ambient
aerosol, Size fractions, biomass burning and inversion layer
NOTE:
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