Modelling photochemical air pollutant formation in Hungary using an adaptive grid technique

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A regional air quality model has been developed that describes the transport and chemical transformation of photochemical oxidants across Central Europe using an adaptive gridding method to achieve high spatial resolution. High-resolution emission inventories for Budapest and Hungary were utilised. The air pollution episode in August 1998 was modelled using a fixed coarse grid (mesh size 70 km) a fixed fine grid (17.5 km) and an adaptive, variable sized (from 17.5 to 70 km) grid. The fine and the adaptive grid models provided similar results, but the latter required 50% longer computing time. High ozone concentrations appeared downwind of Budapest and the plume extended up to about 150 km from the city at 17.00 on the simulated day. The simulation results were compared with ozone concentrations measured at the K-puszta and Hortobágy monitoring stations.

Original languageEnglish
Pages (from-to)44-58
Number of pages15
JournalInternational Journal of Environment and Pollution
Issue number1-3
Publication statusPublished - Jan 1 2009



  • Adaptive gridding method
  • Eulerian model
  • Photochemical air pollution
  • Urban plume

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Pollution
  • Management, Monitoring, Policy and Law

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