Spatial Distribution of Ammonia Emissions on the Territory of the Czech Republic

M. Zapletal and P. Chroust Centre for Environment and Land Assessment Ekotoxa Opava, Horní nám. 2, 746 01 Opava, Czech Republic Abstract Modeling of the spatial distribution of ammonia (NH3) emissions on the territory of the Czech Republic within a 5x5 km grid is essential condition for the modelling of atmospheric transport and deposition flux of reduced nitrogen compounds and exceedances of critical loads of nutrient nitrogen. Spatial distribution of ammonia emissions is a suitable tool for strategy identification of ammonia emission reduction. Key input data to the model of distribution of ammonia emission are detailed data on number and positioning of cattle, horses, sheep, goats, pigs and poultry, data on mineral fertilisers usage, data on the industrial sources and processes, data on the other anthropogenic sources and land use data. For on assessment of total ammonia emission originating from livestock breeding the emission factors have been applied. Total ammonia emissions in 2002 were calculated as a sum of ammonia emission from livestock breeding, emission from mineral fertilisers usage, emission from industrial sources and processes and emission produced by human population on the territory of the Czech Republic on a 5x5 km grid. Total ammonia emission in the Czech Republic in 2002 was estimated to be 72.3 kt NH3 year. Ammonia emission from agricultural sources was estimated to be 68.4 kt NH3 year. There from cattle 29 kt NH3 year, pigs 29.9 kt NH3 year, poultry 7.5 kt NH3 year, horses, sheep and goats 0.21 kt NH3 year, mineral fertilisers usage 1.7 kt NH3 year. Ammonia emission from industrial sources and processes was estimated to be 0.8 kt NH3 year. Ammonia emission from human population was estimated to be 3.1 kt NH3 year.