On the sulphur pollution over the Balkan region

Abstract

The EMAP (Eulerian Model for Air Pollution) model is used to estimate the sulphur pollution over the Balkan region for 1995. A subdomain of the standard EMEP grid is chosen containing all 12 Balkan countries. The computational grid in this domain has a space step of 25 km, twice finer than the EMEP grid. The meteorological input, to EMAP is the operational DWD "Europa-Model" product. This information is processed in a special way as to obtain input information to the PBL model YORDAN built in EMAP. The source input is the official sulphur emission data. This information is processed further as to obtain 25×25 km data for both Large-Point and Area sources. The calculations are made month by month having the last moment fields from the previous month as initial conditions for the next month. The boundary conditions are set to zero so the influence of the other European sources is not accounted for in this study. According to the EMEP methodology multiple runs are made setting every time the sources of various countries to zero. The impact of every Balkan country in sulphur pollution of all other countries for 1995 is estimated and commented. The results of calculation are compared with measurements. © Springer-Verlag Berlin Heidelberg 2006.