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SIMAIR-Evaluation tool for meeting the EU directive on air pollution limits
SMHI, Research Department, Air quality.ORCID iD: 0000-0001-8278-5849
SMHI, Research Department, Air quality.ORCID iD: 0000-0001-6713-5741
2009 (English)In: Atmospheric Environment, ISSN 1352-2310, E-ISSN 1873-2844, Vol. 43, no 5, 1029-1036 p.Article in journal (Refereed) Published
Abstract [en]

Almost all Swedish cities need to determine air pollution levels especially PM10-close to major streets. SIMAIR is an internet tool that can be used by all Swedish municipalities to assess PM10, NO(2), CO and benzene levels and how they compare to the EU directive. SIMAIR is delivered to the municipalities with all required input data pre-loaded and is meant to be used prior to decisions if and where, monitoring campaigns are required. The system includes a road and vehicle database with emission factors and a model to calculate non tailpipe PM10 emissions. Regional and urban background contributions are pre-calculated and stored as hourly values oil a 1 x 1 km(2) grid. The local contribution is calculated by the user, selecting either an open road or a street canyon environment. A comparison between measured and simulated concentrations in four street locations shows that SIMAIR is able to Calculate statistics of yearly mean values, 90-percentile and 98-percentile daily mean values and the number of days exceeding the limit value that are well within +/- 50% that EU requires for model estimates of yearly mean values. In comparison, all Values except one are within +/- 25% which is the quality objective for fixed measurements according to the EU directive. The SIMAIR model system is also able to separate the percentual contribution of the long-range transport from Outside the city, the city contribution and the local contribution from the traffic of an individual street. (C) 2008 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2009. Vol. 43, no 5, 1029-1036 p.
Keyword [en]
Emission model, Traffic model, Dispersion models, Air quality standards
National Category
Environmental Sciences
Research subject
Environment
Identifiers
URN: urn:nbn:se:smhi:diva-638DOI: 10.1016/j.atmosenv.2008.01.056ISI: 000263426300007OAI: oai:DiVA.org:smhi-638DiVA: diva2:806922
Available from: 2015-04-22 Created: 2015-04-21 Last updated: 2016-05-27Bibliographically approved

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Gidhagen, LarsOmstedt, Gunnar
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CiteExportLink to record
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Citation style
  • apa
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