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Czech Hydrometeorological Institute Assessment of air pollution by cadmium CZECH REPUBLIC

This study evaluates the air pollution caused by cadmium in the Czech Republic using the modelling capacity of MSC-E. It includes data on air concentrations, precipitation, throughfall, emissions, and meteorological data. The study aims to improve the assessment of pollution levels and identify the contributions of different sources. The results will inform air quality strategies and policies in the polluted areas.

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Czech Hydrometeorological Institute Assessment of air pollution by cadmium CZECH REPUBLIC

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  1. Czech Hydrometeorological Institute Assessment of air pollution by cadmium CZECH REPUBLIC EMEP Heavy metal case study Milan Váňa, Pavel Machálek + MSC-E EMEP TFMM meeting, 17-19.4.2012 Gozo, Malta

  2. General benefit for CR To use the modelling capacity of MSC-E for more detailed analyzes of measured data from the Czech national monitoring network. The study is focused on cadmuim, reference year 2007.

  3. Data reporting • Air concentration – data reported – Feb 2010 • Precipitation – data reported – Feb 2010 • Throughfall – data reported – Feb 2010 • Metadata about stations – March 2010 • Emissions – May 2010 • Meteorological data from the Czech network – May 2010 • Soil data reported – Sept 2010

  4. Bilateral meetings 1st Bilateral meeting 15 - 16th April 2010 • Definition of general aim of the study for The Czech Republic • Time schedule of activities within the study 2nd bilateral meeting 3 - 4th March 2011 • Main task: to present and summarize the existing results and to define the tasks for the upcoming phase of the study. 3rd bilateral meeting 8 - 9th December 2011 • To present and summarize preliminary results and to prepare the time schedule for joint report focused on heavy metal case study for the Czech Republic. • Identification of remaining problems to be solved:

  5. Analysis of Cd pollution in the Czech Republic General scheme of the case study Recent activities • Selection of priority stations for analysis (8 of 74) Collection of national data (emission, monitoring, ….) • Usage of supporting information (measurements in mosses) for evaluation of spatial distribution • Comparison of modelled meteorological parameters with observations Atmospheric modelling • Assimilation of meteorological data from national synoptic stations • Concentrations and deposition with 5x5 km resolution based on national emission data Analysis of the results • Evaluation of modelled Cd levels against measurements Improved assessment of pollution levels • Investigation of influence of spatial resolution on pollution levels 13th TFMM meeting, April 2012 Gozo

  6. Finer resolution - priority monitoring stations 5x5 km 50x50 km - other monitoring stations Modelled Cd air concentrations 5x5 km 50x50 km Modelled Cd total deposition

  7. TASKS Contributions of administrative regions Contributions of source categories (NFR) to pollution levels Contributions of large point sources to pollution (1A1, 1A2) Contributions of neighbouring countries to pollution levels

  8. Deposition from regions of a country Annual deposition from sources of Ustecky regiong/km2/y, in 2007 Deposition from Ustecky region to other regions of CZ

  9. Annual deposition from sources of Moravskoslezsky region g/km2/y, in 2007

  10. Annual deposition from sources of NFR category 1A1a (Public electricity and heat production), g/km2/y, 2007

  11. Annual deposition from sources of NFR category1A2a (Combustion in production of iron and steel ) g/km2/y, 2007

  12. Annual deposition from sources of NFR category 2C1 (Iron and Steel production), g/km2/y, 2007

  13. Annual deposition from sources of category R1_TECHN (non-LPS technological sources), g/km2/y, 2007

  14. Contribution of source categories to deposition of Cd to regions of the Czech Republic Cd deposition in CZ, 5x5 km

  15. Evaluation of transport from individual point sources (Czech Republic) Source: Power station Chvaletice, 98 kg Cd per year

  16. Cd deposition to administrative regions

  17. Cd deposition flux to regions

  18. Contribution of external emission sources of Cd to anthropogenic deposition in the Czech Republic

  19. Depostion of Cd from countries

  20. Conclusions • The emissions from the most polluted regions sources influencethe whole north-western part of the Czech Republic (Ustecky) and north-eastern (Ostravsky) and caused significant transport to the border regions of Germany and Poland • The high Cd concentrations and depositions from internal sources in the Ustecky region are mostly caused by emissions from power plants and heating, intheother hot spot (Moravskoslezský region) by iron and steel production and combustion during these activities.

  21. Conclusions • Strong contribution of external emission sources to the pollution levels by cadmium all over the Czech Republic, especially in the eastern part

  22. General conclusion • Spatial resolution of emission data is a key factor of improvement of quality of pollution assessment at national scale. Besides, emissions of neighbouring countries with fine resolution are highly important.

  23. Conclusions for the Czech Republic • The study give us opportunities to precise the measures for improvement of air quality strategies and policy in the polluted areas • The results of EMEP HM case study will be used as one of the basis for the prepared heavy metal environmental strategy prepared by the Czech Ministry of Environment and for local authorities

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