SHAPE: THE STOCKHOLM STUDY ON HEALTH EFFECTS OF AIR POLLUTION AND THEIR ECONOMIC CONSEQUENCES. PART 1: NO2 AND PARTICULATE MATTER IN STOCKHOLM. CONCENTRATIONS AND POPULATION EXPOSURE

This report presents air quality dispersion calculations of the ambient levels of NO2 and particulate matter in the Stockholm region. The calculations are based on an Information and Air Quality Assessment System that is administered by the Regional Association for Air Quality Management in the counties of Stockholm and Uppsala. Detailed information about air pollutant sources is provided once a year from the members of the Association, which consists of about 30 municipalities and regional administrations in the counties. Information on the emissions of NOx and particulate matter is used to calculate the dispersion of these compounds for five different areas with a resolution ranging from 100 m to 2000 m. Road traffic emissions are calculated from detailed information on traffic volumes, vehicle compositions and driving conditions. The database also includes emissions from burning of different fuels in district and residential heating, emissions from ships and a special model for re-suspension of particulate matter from road dust. The re-suspension model considers the influence of meteorological conditions, the wetness of the road surface and effect of the traffic on the re-suspension rate. (A)

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