Abstract
Sensitivity of ozone formation to NOx and VOC emission is important in terms of implementing control strategies for photochemical pollutants, helping to determine the most effective way to limit O3 concentrations and population exposure to high levels of O3. In this study, the role of NOx emissions on hourly O3 concentrations is examined in order to determine whether NOx is the driver or limiting factor of ozone formation in SW Poland in high-ozone situations. In order to assess that, four scenarios are analyzed: baseline, with no modification of the available emission inventory, a 10, 20 and 30 % decrease in anthropogenic emission of NOx. The simulations were performed for an episode with high O3 concentrations. Both spatial and temporal changes in ozone concentrations for all scenarios have been analyzed. Preliminary results show that reducing NOx emission is associated with higher O3 concentrations, however, further research is needed to assess the role of VOC.
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Acknowledgments
The study was supported by the Polish National Science Centre project no. UMO-2013/09/B/ST10/00594. The project was financed with means of the European Union under the Financial Instrument LIFE+ and co-financed by the National Found of Environmental Protection and Water Management. Calculations were carried out in the Wrocław Centre for Networking and Supercomputing (http://www.wcss.wroc.pl), Grant No. 170.
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Wałaszek, K., Kryza, M., Werner, M., Ojrzyńska, H. (2016). Sensitivity of Ground-Level Ozone to NOx Emission During a High Ozone Episode in SW Poland. In: Steyn, D., Chaumerliac, N. (eds) Air Pollution Modeling and its Application XXIV. Springer Proceedings in Complexity. Springer, Cham. https://doi.org/10.1007/978-3-319-24478-5_56
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DOI: https://doi.org/10.1007/978-3-319-24478-5_56
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