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  • 标题:Characterization of Urban Particulate Matter for a health-related Study in Southern Finland
  • 本地全文:下载
  • 作者:Aurela M. ; Sillanpää ; M.
  • 期刊名称:Boreal Environment Research
  • 印刷版ISSN:1239-6095
  • 出版年度:2010
  • 卷号:15
  • 期号:05
  • 出版社:Finnish Limnological Society
  • 摘要:

    Particulate matter
    was physically and chemically characterized in November 2005–May 2006
    concurrently with an epidemiological study among cardiac patients in Kotka,
    Finland. The daily PM2.5 concentrations (campaign mean
    10.6 g m–3) typically displayed a similar pattern to that
    in Helsinki, suggesting that the air masses were well-mixed over a large area of
    southern Finland. There were occasionally increased short-term PM2.5
    and particle number concentrations, most likely due to emissions from local
    industrial sources. A strong relationship was detected between high particle
    number concentrations (> 30 000 cm–3) and north-easterly
    winds. PM2.5, black carbon (BC) or nitrogen oxides (NOx)
    did not show corresponding connection. The mean contribution of local traffic to
    BC and NOx were estimated at 30% and 55%, respectively, during the
    campaign. The main chemical component of PM2.5 was particulate
    organic matter (37% ± 14%) followed by non-sea-salt sulphate
    (26% ± 11%), whereas main component of PM2.5–10 was
    soil-derived crustal material (49% ± 11%).

  • 关键词:Particulate Matter;Particulates;Epidemiological Study;Cardiac Patients;Nitrogen Oxides;Particulate Organic Matter
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