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http://dx.doi.org/10.5572/KOSAE.2011.27.5.504

Estimating Influence of Local and Neighborhood Emissions on Ozone Concentrations over the Kwang-Yang Bay based on Air Quality Simulations for a 2010 June Episode  

Kim, Soon-Tae (Division of Environmental, Civil & Transportation Engineering, Ajou University)
Lee, Chong-Bum (Department of Environmental Sciences, Kangwon National University)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.27, no.5, 2011 , pp. 504-522 More about this Journal
Abstract
Simulations of CMAQ with the High-order Decoupled Direct Method (HDDM) for a 2010 June episode are applied to estimate the influence of local and neighborhood emissions on ozone concentrations in the Kwang-Yang Bay (KYB) area. In order to examine ozone response to reductions in $NO_x$ and VOC emissions from KYB and Gyeongsang, ozone isopleths are generated with the first and second-order sensitivity coefficients from HDDM simulations at three sites; Taein, Samil, and Gwangmoo. Simulations show that reduction in KYB $NO_x$ may increase ozone over the sites. On the contrary, $NO_x$ reduction from Gyeongsang may decrease ozone at the sites when transport of ozone and its precursors from upwind Gyeongsang is potentially high. However, VOC reductions from KYB and Gyeongsang are favorable to lower ozone over KYB. The study implies that emission reductions for both local and neighboring areas are likely more effective to bring KYB to ozone attainment.
Keywords
Kwang-Yang Bay; Ozone; Local and neighborhood emissions; Air quality simulation; HDDM;
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Times Cited By KSCI : 4  (Citation Analysis)
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