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Chemical characterization of water-soluble aerosols in different residential environments of semi aridregion of India

Kulshrestha, A and Bisht, DS and Masih, J and Massey, D and Tiwari, S and Taneja, A (2009) Chemical characterization of water-soluble aerosols in different residential environments of semi aridregion of India. Journal of Atmospheric Chemistry, 62 (2). pp. 121-138.

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Abstract

This paper deals with the atmospheric concentrations of PM 5 and PM 2.5 particulate matter and its water soluble constituents along with the size distribution of ions and spatial variation at three different residential environments in a semiarid region in India. Samples were collected from the indoors and outdoors of urban, rural and roadside sites of Agra during October 2007-March 2008. The mean concentrations of PM 2.5 indoors and outdoors were 178 μgm -3 and 195 μgm -3 while the mean concentrations of PM 5 indoors and outdoors were 231.8 μgm -3 and 265.2 μgm -3 respectively. Out of the total aerosol mass, water soluble constituents contributed an average of 80 (33 anions, 50 cations) in PM 5 and 70 (29 anions, 43 cations) in PM 2.5. The indoor-outdoor ratio of water soluble components suggested additional aerosol indoor sources at rural and roadside sites. Indoor-outdoor correlations were also determined which show poor relationships among concentrations of aerosol ions at all three sites. Univariate Pearson correlation coefficients among water soluble aerosols were determined to evaluate the relationship between aerosol ions in indoor and outdoor air.

Item Type: Article
Additional Information: Copyright of this article belongs to Springer
Uncontrolled Keywords: anion; cation; water, aerosol composition; atmospheric chemistry; atmospheric pollution; correlation; indoor air; ionic composition; particulate matter; size distribution; spatial variation; urban atmosphere, aerosol; air pollution; ambient air; article; atmosphere; chemical analysis; comparative study; concentration (parameters); controlled study; correlation coefficient; India; indoor air pollution; particle size; particulate matter; residential area; rural area; semiarid climate; solubility; traffic; urban area, Agra; India; Uttar Pradesh
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 18 Feb 2015 11:28
Last Modified: 18 Feb 2015 11:28
URI: http://moeseprints.incois.gov.in/id/eprint/1786

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