文章基本信息

标题：Evaluation of Local Scale PM Pollution Levels in Typical Street Canyon in Riga
本地全文：下载
作者：Iveta Steinberga ; Janis Bikshe Jr. ; Karlis Kundzins 等
期刊名称：Journal of Environmental Protection
印刷版ISSN：2152-2197
电子版ISSN：2152-2219
出版年度：2013
卷号：4
期号：9
页码：956-963
DOI：10.4236/jep.2013.49110
出版社：Scientific Research Publishing
摘要：The present study describes long term PM10 and PM2.5 changes in typical street canyon with particular emphasis on seasonal, diurnal variations in context with meteorological data. In order to understand PM10 pollution sources during 28 April 2007-31 December 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 are analyzed.
关键词：Air Pollution; PM; Riga; Street Canyon; Source-Apportionment