Abstract
Concentrations of ozone were continuously measured at four urban monitoring sites (Gu Ro (G); No Won (N); Song Pa (S); and Yong San (Y)) in Seoul, Korea from 2009 to 2011. The annual mean concentrations of ozone (in ppb) at these sites were found on the order of N (21.8±19.3)>S (21.4±20.14)>G (20.9±18.0)>Y (18.8±17.4). During peak hours (12-6pm), the ozone concentrations were significantly higher (75, 69, 67, and 64% at site S, Y, N, and G, respectively) than overall 24hour mean values. Seasonal variations of ozone have quite similar patterns at every site with systematic increases during spring (March-May) and summer (June-August) with the summer daytime mean (12-6pm) values of 40.7 (site Y)-49.3ppb (site S). The concentrations of ozone exhibited strong inverse correlations with other criteria pollutants (e.g., oxides of nitrogen and carbon monoxide), while a significant positive correlation was observed with some meteorological parameters (e.g., ultraviolet ray and solar radiation). Evidence collected in this study confirm that the spatio-temporal distribution of ozone in the study areas should be affected by the anthropogenic sources (e.g., vehicles, residential, and industrial sources) in concert with such well-known variables as the NOx-VOC chemistry and a number of natural parameters (e.g., wind speed, geographic position, and solar radiation).
| Original language | English |
|---|---|
| Pages (from-to) | 330-345 |
| Number of pages | 16 |
| Journal | Atmospheric Research |
| Volume | 138 |
| DOIs | |
| Publication status | Published - 2014 Mar 1 |
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Keywords
- Fossil fuel
- Ozone level
- Seoul
- Solar radiation (SR)
- Trend
ASJC Scopus subject areas
- Atmospheric Science
Cite this
Comparison of ozone pollution levels at various sites in Seoul, a megacity in Northeast Asia. / Iqbal, Mohammad Asif; Kim, Ki Hyun; Shon, Zang Ho; Sohn, Jong Ryeul; Jeon, Eui Chan; Kim, Yoon Shin; Oh, Jong Min.
In: Atmospheric Research, Vol. 138, 01.03.2014, p. 330-345.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Comparison of ozone pollution levels at various sites in Seoul, a megacity in Northeast Asia
AU - Iqbal, Mohammad Asif
AU - Kim, Ki Hyun
AU - Shon, Zang Ho
AU - Sohn, Jong Ryeul
AU - Jeon, Eui Chan
AU - Kim, Yoon Shin
AU - Oh, Jong Min
PY - 2014/3/1
Y1 - 2014/3/1
N2 - Concentrations of ozone were continuously measured at four urban monitoring sites (Gu Ro (G); No Won (N); Song Pa (S); and Yong San (Y)) in Seoul, Korea from 2009 to 2011. The annual mean concentrations of ozone (in ppb) at these sites were found on the order of N (21.8±19.3)>S (21.4±20.14)>G (20.9±18.0)>Y (18.8±17.4). During peak hours (12-6pm), the ozone concentrations were significantly higher (75, 69, 67, and 64% at site S, Y, N, and G, respectively) than overall 24hour mean values. Seasonal variations of ozone have quite similar patterns at every site with systematic increases during spring (March-May) and summer (June-August) with the summer daytime mean (12-6pm) values of 40.7 (site Y)-49.3ppb (site S). The concentrations of ozone exhibited strong inverse correlations with other criteria pollutants (e.g., oxides of nitrogen and carbon monoxide), while a significant positive correlation was observed with some meteorological parameters (e.g., ultraviolet ray and solar radiation). Evidence collected in this study confirm that the spatio-temporal distribution of ozone in the study areas should be affected by the anthropogenic sources (e.g., vehicles, residential, and industrial sources) in concert with such well-known variables as the NOx-VOC chemistry and a number of natural parameters (e.g., wind speed, geographic position, and solar radiation).
AB - Concentrations of ozone were continuously measured at four urban monitoring sites (Gu Ro (G); No Won (N); Song Pa (S); and Yong San (Y)) in Seoul, Korea from 2009 to 2011. The annual mean concentrations of ozone (in ppb) at these sites were found on the order of N (21.8±19.3)>S (21.4±20.14)>G (20.9±18.0)>Y (18.8±17.4). During peak hours (12-6pm), the ozone concentrations were significantly higher (75, 69, 67, and 64% at site S, Y, N, and G, respectively) than overall 24hour mean values. Seasonal variations of ozone have quite similar patterns at every site with systematic increases during spring (March-May) and summer (June-August) with the summer daytime mean (12-6pm) values of 40.7 (site Y)-49.3ppb (site S). The concentrations of ozone exhibited strong inverse correlations with other criteria pollutants (e.g., oxides of nitrogen and carbon monoxide), while a significant positive correlation was observed with some meteorological parameters (e.g., ultraviolet ray and solar radiation). Evidence collected in this study confirm that the spatio-temporal distribution of ozone in the study areas should be affected by the anthropogenic sources (e.g., vehicles, residential, and industrial sources) in concert with such well-known variables as the NOx-VOC chemistry and a number of natural parameters (e.g., wind speed, geographic position, and solar radiation).
KW - Fossil fuel
KW - Ozone level
KW - Seoul
KW - Solar radiation (SR)
KW - Trend
UR - http://www.scopus.com/inward/record.url?scp=84891135091&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84891135091&partnerID=8YFLogxK
U2 - 10.1016/j.atmosres.2013.12.003
DO - 10.1016/j.atmosres.2013.12.003
M3 - Article
AN - SCOPUS:84891135091
VL - 138
SP - 330
EP - 345
JO - Atmospheric Research
JF - Atmospheric Research
SN - 0169-8095
ER -