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The spatial variation of O3, NO, NO2 and NOx and the relation between them in two Swedish cities
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine. (Arcum)
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine.
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2017 (English)In: Environmental Monitoring & Assessment, ISSN 0167-6369, E-ISSN 1573-2959, Vol. 189, no 4, UNSP 161Article in journal (Refereed) Published
Abstract [en]

Ozone and nitrogen oxides (NO x ) are air pollutants with known associations to adverse health effects on humans. Few studies have simultaneously measured ozone and nitrogen oxides with high spatial resolution. The main aim of this paper was to assess the levels and variation of ground-level ozone, NO2 and NO x in two Swedish cities. An additional aim was to describe the levels of these pollutants within and between three different types of measurement sites (regional background, urban background and traffic sites) and within and between different measurement periods of the year. Three weekly sampling campaigns of NO x and ozone were conducted simultaneously at 20 sites in two Swedish regions using Ogawa badges. Ozone was measured at 20 additional sites in each area. The median ozone concentration for all measurements was statistically significantly higher in Malmö (67 μg/m(3)) compared to Umeå (56 μg/m(3)), and in both cities, ozone levels were highest in April. Measurement period was a more important factor for describing the variation in ozone concentrations than the type of measurement site. The levels of NO2 and NO x were statistically significantly higher in the Malmö area (8.1 and 12 μg/m(3)) compared to the Umeå area (4.5 and 8.9 μg/m(3)). The levels were generally highest at the sites categorized as traffic, while the variability between different seasons was sparse.

Place, publisher, year, edition, pages
2017. Vol. 189, no 4, UNSP 161
Keyword [en]
Determinants of exposure, Diffusive sampler, Measurements, Nitrogen oxides, Ozone, Spatial variation
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:umu:diva-132584DOI: 10.1007/s10661-017-5872-zISI: 000398714200027PubMedID: 28290139OAI: oai:DiVA.org:umu-132584DiVA: diva2:1082628
Available from: 2017-03-17 Created: 2017-03-17 Last updated: 2017-05-19Bibliographically approved

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Citation style
  • apa
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More styles
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  • Other locale
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