The Effects of Precursor Emission and Background Concentration Changes on the Surface Ozone Concentration over Korea

Shin, Hye Jung; Cho, K. M.; Han, Jin-Seok; Kim, J. S.; Kim, Y. P.

doi:10.4209/aaqr.2011.09.0141

Cited by 29 publications

(14 citation statements)

References 28 publications

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“…However, the OMI data suggest that the effectiveness of their local NO x emission control strategies may have been diminished by increasing transboundary transport of NO x pollution from China. China's pollution is known to negatively impact air quality in countries downwind [e.g., Takashima et al, 2011;Shin et al, 2012;Akimoto et al, 2015]. Lee et al [2014] used a combination of satellite NO 2 data, including from OMI, and a model to demonstrate the influence of Chinese NO x emissions on NO 2 levels in adjacent marine areas, Japan, and the Korean Peninsula.…”

Section: Japan and Republic Of Korea: Possible Reduced Effectiveness mentioning

confidence: 99%

A space‐based, high‐resolution view of notable changes in urban NO_x pollution around the world (2005–2014)

et al. 2016

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Nitrogen oxides (NOx = NO + NO2) are produced during combustion processes and, thus may serve as a proxy for fossil fuel‐based energy usage and coemitted greenhouse gases and other pollutants. We use high‐resolution nitrogen dioxide (NO2) data from the Ozone Monitoring Instrument (OMI) to analyze changes in urban NO2 levels around the world from 2005 to 2014, finding complex heterogeneity in the changes. We discuss several potential factors that seem to determine these NOx changes. First, environmental regulations resulted in large decreases. The only large increases in the United States may be associated with three areas of intensive energy activity. Second, elevated NO2 levels were observed over many Asian, tropical, and subtropical cities that experienced rapid economic growth. Two of the largest increases occurred over recently expanded petrochemical complexes in Jamnagar (India) and Daesan (Korea). Third, pollution transport from China possibly influenced the Republic of Korea and Japan, diminishing the impact of local pollution controls. However, in China, there were large decreases over Beijing, Shanghai, and the Pearl River Delta, which were likely associated with local emission control efforts. Fourth, civil unrest and its effect on energy usage may have resulted in lower NO2 levels in Libya, Iraq, and Syria. Fifth, spatial heterogeneity within several megacities may reflect mixed efforts to cope with air quality degradation. We also show the potential of high‐resolution data for identifying NOx emission sources in regions with a complex mix of sources. Intensive monitoring of the world's tropical/subtropical megacities will remain a priority, as their populations and emissions of pollutants and greenhouse gases are expected to increase significantly.

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Section: Japan and Republic Of Korea: Possible Reduced Effectiveness mentioning

confidence: 99%

A space‐based, high‐resolution view of notable changes in urban NO_x pollution around the world (2005–2014)

et al. 2016

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“…The meteorological variables used in this study include common factors related to the O 3 variations such as temperature ( • C), surface insolation (W m −2 ), relative humidity (%), and wind speed (m s −1 ) (e.g., Ordóñez et al, 2005;Camalier et al, 2007;Jacob and Winner, 2009). Dewpoint temperature ( • C) and sea-level pressure (hPa) are additionally applied for multiple linear regression models as other previous studies have done (e.g., Thompson et al, 2001;Shin et al, 2012). Finally, wind direction (16 cardinal directions) is used to reveal its relationship with short-term changes in O 3 .…”

Section: Datamentioning

confidence: 99%

“…We decomposed O 3 time series at each measurement site into different timescales of shortterm, seasonal, and long-term components by application of the Kolmogorov-Zurbenko filter (KZ filter) that has been used in previous studies (e.g., Gardner and Dorling, 2000;Ibarra-Berastegi et al, 2001;Thompson et al, 2001;Lu and Chang, 2005;Wise and Comrie, 2005;Tsakiri and Zurbenko, 2011;Shin et al, 2012). To investigate the meteorological impact on the O 3 levels, we applied the combined analysis of the KZ filter and linear regression model with the meteorological variables.…”

Section: Introductionmentioning

confidence: 99%

Extensive spatiotemporal analyses of surface ozone and related meteorological variables in South Korea for the period 1999–2010

et al. 2014

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Abstract. Spatiotemporal characteristics of surface ozone (O 3 ) variations over South Korea are investigated with consideration of meteorological factors and timescales based on the Kolmogorov-Zurbenko filter (KZ filter), using measurement data at 124 air quality monitoring sites and 72 weather stations for the 12 yr period of 1999-2010. In general, O 3 levels at coastal cities are high due to dynamic effects of the sea breeze while those at the inland and Seoul Metropolitan Area (SMA) cities are low due to the NO x titration by local precursor emissions. We examine the meteorological influences on O 3 using a combined analysis of the KZ filter and linear regressions between O 3 and meteorological variables. We decomposed O 3 time series at each site into short-term, seasonal, and long-term components by the KZ filter and regressed on meteorological variables. Impact of temperature on the O 3 levels is significantly high in the highly populated SMA and inland region, but low in the coastal region. In particular, the probability of high O 3 occurrence doubles with 4 • C of temperature increase in the SMA during high O 3 months (May-October). This implies that those regions will experience frequent high O 3 events in a future warming climate. In terms of short-term variation, the distribution of high O 3 probability classified by wind direction shows the effect of both local precursor emissions and long-range transport from China. In terms of long-term variation, the O 3 concentrations have increased by +0.26 ppbv yr −1 (parts per billion by volume) on nationwide average, but their trends show large spatial variability. Singular value decomposition analyses further reveal that the long-term temporal evolution of O 3 is similar to that of nitrogen dioxide, although the spatial distribution of their trends is different. This study will be helpful as a reference for diagnostics and evaluation of regional-and local-scale O 3 and climate simulations, and as a guide to appropriate O 3 control policy in South Korea.

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“…Several studies have compared concentrations of O 3 in urban, semi-urban and rural areas (Sillman 1999;Latif et al, 2012;Shin et al, 2012;Wang et al, 2012). The concentration of surface O 3 is predominantly higher in suburban areas due to the downwind plume of O 3 precursors from city centres (Monteiro et al, 2012;Wei et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Surface Ozone Concentrations at Stations with Different Backgrounds in the Malaysian Peninsula

Banan

Latif

Juneng

et al. 2013

Aerosol Air Qual. Res.

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One of the main challenges for countries in tropical areas is the high concentration of ozone caused by elevated levels of anthropogenic and natural ozone precursors. In this study, variations in O 3 concentrations from urban, suburban and rural regions of the Malaysian Peninsula were investigated using data covering a five-year period (2005)(2006)(2007)(2008)(2009) obtained from the Malaysian Department of the Environment. The principal aim of the study is to identify and describe the variations in O 3 concentrations recorded at three monitoring stations with different backgrounds, namely Petaling Jaya (S2) (urban), Putrajaya (S1) (suburban) and Jerantut (S3) (rural). The study also investigated the relationship between O 3 distribution and its association with nitrogen oxides (NO and NO 2 ) and non-methane hydrocarbon (NMHC). The results showed that the highest O 3 concentration was recorded in a suburban area (Putrajaya (S1) with an average daily maximum value of 60 ± 20 ppbv). The O 3 concentration was influenced by the characteristics of nitrogen oxides, particularly the titration of NO. The surface O 3 level was found to be influenced by solar radiation and wind direction from the busy areas, most notably Kuala Lumpur's city centre. This study suggests that the emission of O 3 precursors, particularly NO x from motor vehicles, needs to be regulated to reduce the incidence of high O 3 levels in Malaysia.

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The Effects of Precursor Emission and Background Concentration Changes on the Surface Ozone Concentration over Korea

Cited by 29 publications

References 28 publications

A space‐based, high‐resolution view of notable changes in urban NO_x pollution around the world (2005–2014)

A space‐based, high‐resolution view of notable changes in urban NO_x pollution around the world (2005–2014)

Extensive spatiotemporal analyses of surface ozone and related meteorological variables in South Korea for the period 1999–2010

Characteristics of Surface Ozone Concentrations at Stations with Different Backgrounds in the Malaysian Peninsula

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The Effects of Precursor Emission and Background Concentration Changes on the Surface Ozone Concentration over Korea

Cited by 29 publications

References 28 publications

A space‐based, high‐resolution view of notable changes in urban NOx pollution around the world (2005–2014)

A space‐based, high‐resolution view of notable changes in urban NOx pollution around the world (2005–2014)

Extensive spatiotemporal analyses of surface ozone and related meteorological variables in South Korea for the period 1999–2010

Characteristics of Surface Ozone Concentrations at Stations with Different Backgrounds in the Malaysian Peninsula

Contact Info

Product

Resources

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A space‐based, high‐resolution view of notable changes in urban NO_x pollution around the world (2005–2014)

A space‐based, high‐resolution view of notable changes in urban NO_x pollution around the world (2005–2014)