Abstract
Numerical models are essential instruments for assessing atmospheric transport and deposition of heavy metals (HM) on regional and global scales. The models are widely used by national experts and on the international level by several different programs (AMAP, CEC, UNEP). An important attention to modelling is paid by the Protocol on Heavy Metals of the Transboundary Air Pollution Convention. The Protocol prescribes to fulfil model estimation of HM atmospheric transport between the countries of the Convention and to reveal long-term trends of HM pollution. Among the others, the Protocol considers mercury as the most dangerous HM for the environment and for human health.
