Det här examensarbetet är en kartläggning av luftföroreningarna kvävedioxid, partiklar PM10, kolmonoxid och bensen i kommunerna Luleå, Boden, Piteå och Älvsbyn. För varje kommun har det sammanställts en rapport och dessa redovisas var för sig i efterföljande bilagor. Resultatet av beräkningarna och kartläggningen visar hur luftföroreningssituationen ser ut i respektive kommun och utifrån detta lämnas lite olika råd varpå kommunerna sedan kan ta ställning till hur den fortsatta kontrollen av luftföroreningar ska ske..

An Internet application, VEDAIR, for estimation of air quality in regions with small-scale combustion of bio fuel has been developed by Swedish Meteorological and Hydrological Institute with financing from Swedish Energy Agency and Swedish Environmental Protection Agency. The model contains user interface and a coupled model concept where concentrations of atmospheric pollutions are calculated for regional, urban and local contributions. In this report the model is described and a first study of air quality considering PM10 (particles with a diameter less than 10 µm) in two Swedish municipalities, Vänersborg and Gnosjö, is introduced.According to the result, there are areas with poor air quality even in smaller Swedish municipalities, mostly due to high emission from buildings with older wood heating furnace without hydraulic accumulator.In Vänersborg three areas were analysed in VEDAIR for the year 2003: Vargön, Mariedal and the downtown district. In the whole municipality the upper evaluation threshold for PM10, which is defined as 14 µg/m3 for annual average, was exceeded due to background contribution of particles. In all areas, however, the concentrations of PM10 were less than the environmental quality norms.