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Seasonal air quality profile of size-segregated aerosols in the ambient air of a central Indian region.

Authors
  • Deshmukh, Dhananjay K
  • Deb, Manas K
  • Verma, Devsharan
  • Nirmalkar, Jayant
Type
Published Article
Journal
Bulletin of Environmental Contamination and Toxicology
Publisher
Springer-Verlag
Publication Date
Dec 01, 2013
Volume
91
Issue
6
Pages
704–710
Identifiers
DOI: 10.1007/s00128-013-1121-5
PMID: 24129422
Source
Medline
License
Unknown

Abstract

Seasonal distribution trends of size-segregated aerosols i.e. submicron (PM1), fine (PM2.5) and coarse (PM2.5-10) and their relationship with meteorological variables employing correlation analysis were studied in the ambient air of central India from July 2009 to June 2010. The annual mean concentrations of PM1, PM2.5 and PM2.5-10 were found to be 65.7, 135.0 and 118.5 μg m(-3), respectively. The annual mean PM2.5 concentration is three times higher than the National Ambient Air Quality Standards of India (NAAQS). Higher concentrations of PM1, PM2.5 and PM2.5-10 were found during winter due to enormous biomass burning especially during night time due to the use of combustible goods like fire wood and dung cake in the open space by the peoples to keep themselves warm and lower concentrations were observed during monsoon when there were high precipitations. PM2.5 showed high positive correlation with PM1 (r = 0.69) and moderate correlation with PM2.5-10 indicating that variation in PM2.5 mass is governed by the variation in PM1 mass or vice versa.

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