DOI: 10.1016/j.atmosenv.2013.10.061
Scopus记录号: 2-s2.0-84888095566
论文题名: Particulate matter analysis in indoor environments of urban and rural primary schools using passive sampling methodology
作者: Canha N ; , Almeida S ; M ; , Freitas M ; D ; C ; , Trancoso M ; , Sousa A ; , Mouro F ; , Wolterbeek H ; T
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 83 起始页码: 21
结束页码: 34
语种: 英语
英文关键词: Enrichment factors
; Indoor air quality
; Particulate matter
; Passive method
; Primary schools
; Source apportionment
Scopus关键词: Calcium
; Indoor air pollution
; Societies and institutions
; Urban growth
; Enrichment factors
; Indoor air quality
; Particulate Matter
; Passive methods
; Primary schools
; Source apportionment
; Teaching
; antimony
; bromine
; calcium
; calcium ion
; element
; zinc
; air quality
; anthropogenic source
; atmospheric deposition
; atmospheric pollution
; calcium
; concentration (composition)
; enrichment
; indoor air
; particulate matter
; resuspension
; rural area
; sampling
; air pollutant
; air sampling
; ambient air
; article
; autumn
; indoor air pollution
; mass
; methodology
; particulate matter
; passive sampling methodology
; primary school
; priority journal
; rural area
; sampling
; seasonal variation
; urban area
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Passive sampling methodology was applied to collect particulate matter (PM) in classrooms of urban and rural primary schools. The samples were taken during a year by passive deposition allowing the study of seasonal variability of the particles masses and chemical content. Chemical characterization of the collected particles was performed in order to measure its soluble ions content and elemental composition. To identify the main polluting sources, correlations between parameters and enrichment factors were studied. Higher particle masses concentrations were registered in autumn, with a mean of 1.54±0.74μgday-1cm-2. The major element in the collected particles was calcium, representing 63-73% of the analyzed mass of the particles inside the urban classrooms. In the rural cluster, calcium remained the major component but with a slight lower contribution to the overall particles composition (42-46%). The calcium source was hypothesized to be the chalk used in the blackboards of the classrooms due to a strong correlation found between Ca2+ and SO42-. Soil re-suspension, traffic and other anthropogenic emission sources were also identified. Analysis showed enrichment of the particles with Br, Ca, Zn and Sb in the urban cluster and enrichment of the same elements, except for Ca, in the rural cluster. The comparison between the results from both clusters allowed the identification of classrooms with higher particles concentrations that can indicate potential indoor air quality problems (reflected by an indoor accumulation of pollutants). © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81288
Appears in Collections: 气候变化事实与影响
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作者单位: C2TN, Instituto Superior Técnico, Universidade de Lisboa, EN 10, ao km 139.7, 2695-066 Bobadela LRS, Portugal; Laboratório Nacional de Energia e Geologia, LNEG, UB, Laboratório de Biocombustíveis e Ambiente, Estrada do Paço do Lumiar, Edifício E, 1649-038 Lisboa, Portugal; Department of Radiation, Radionuclides and Reactors, Faculty of Applied Sciences, Delft University of Technology, Mekelweg 15, 2629 JB Delft, Netherlands
Recommended Citation:
Canha N,, Almeida S,M,et al. Particulate matter analysis in indoor environments of urban and rural primary schools using passive sampling methodology[J]. Atmospheric Environment,2014-01-01,83