Information on pollution levels and transboundary fluxes regularly produced by EMEP can be extended by an assessment performed at a country-scale level. MSC-E and the Task Force on Measurements and Modelling (TFMM) of EMEP organized a number of country–specific case studies on heavy metal pollution assessment in several individual countries (the Czech Republic, Croatia, the Netherlands, Belarus, Poland). This initiative was approved by the EMEP Steering Body [ECE/EB.AIR/GE.1.2009/2]. Country-specific case studies assume the integrated analysis of factors affecting quality of the assessment including emissions, measurements, and modelling with fine spatial resolution in individual countries as well as detailed joint analysis of pollution levels with national experts. The studies allow taking into account specific features of countries’ orography, meteorological conditions, distribution of emission sources across the country and data from national monitoring programmes.
This year the work, focused on assessment of lead pollution levels in Belarus, has been completed. The study shows that anthropogenic emissions of lead in Belarus and some neighbouring countries are likely incomplete. For the analysis of heavy metal emission data in the EECCA countries joint efforts of national emission experts of these countries together with CEIP and TFEIP are required. Besides, in order to improve quality of measurements in the EECCA region, participation of national laboratories in the regular intercomparisons under the Chemical Coordinating Centre (CCC) supervision is appreciated. Further country-specific activity is planned to be focused on Poland and the United Kingdom. The investigation of emission data effect on a country-scale assessment will be further continued in a case study for Poland, where possible uncertainties of temporal variation of emissions are identified. In addition, a case study for the United Kingdom has been also initiated. One of the important aims of this study is investigation of role of secondary sources in heavy metal pollution in the country.