Evaluation of Local Scale PM Pollution Levels in Typical Street Canyon in Riga

The present study describes long term PM sub( 10) and PM sub( 2.5) changes in typical street canyon with particular emphasis on seasonal, diurnal variations in context with meteorological data. In order to understand PM sub( 10) pollution sources during Apr 28, 2007-Dec 31, 2007, chemical compositio...

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Bibliographic Details
Published in:Journal of environmental protection (Irvine, Calif.) Calif.), 2013-09, Vol.4 (9), p.956-963
Main Authors: Steinberga, Iveta, Bikshe Jr, Janis, Kundzins, Karlis, Kleperis, Janis, Bikshe, Janis
Format: Article
Language:English
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Summary:The present study describes long term PM sub( 10) and PM sub( 2.5) changes in typical street canyon with particular emphasis on seasonal, diurnal variations in context with meteorological data. In order to understand PM sub( 10) pollution sources during Apr 28, 2007-Dec 31, 2007, chemical composition measurements were done with particular emphasis on heavy metals (As, Cd, Ni, and Pb), crustal material (Ca, Mg, Na, and K) and anions (sulphates, nitrates, chlorides). Meteorological data used for this evolutional analysis were measured close to traffic related stations and several meteorological parameters were analyzed in relation to particulate measurements. Keep in mind that atmospheric aerosols are generally hydroscopic. Relative humidity which plays very important role in rain/snow and humidity impact is analyzed.
ISSN:2152-2197
2152-2219
DOI:10.4236/jep.2013.49110