Air quality in the border areas between Norway and USSR. Model description and preliminary modelling results.

The air quality dispersion models CONDEP and INPUFF have been described and used to calculate dispersion of SO2 in the border area between Norway and USSR. The model CONDEP was used to calculate monthly mean SO2-consentrations from January to June 1990. The average SO2-concentrations was also estimated for the winter season 1989-90 and the summer season 1990. INPUFF estimates hourly concentrations for selected episodes. Only a few experiments have been performed so far.