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Short and Long-Term Temporal Changes in Air Quality in a Seoul Urban Area: The Weekday/Sunday Effect

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Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Korea
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Department of Marine Science and Technology, The Federal University of Technology, P.M.B. 704, Akure, Nigeria
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Environmental and Water Resources Engineering Division, Department of Civil Engineering, IIT Madras, Chennai 600 036, India
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Department of Environment & Energy, Sejong University, Seoul 05006, Korea
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College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
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Chemical, Medical and Environmental Science Department, National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK
*
Author to whom correspondence should be addressed.
Sustainability 2018, 10(4), 1248; https://doi.org/10.3390/su10041248
Received: 15 March 2018 / Revised: 15 April 2018 / Accepted: 17 April 2018 / Published: 19 April 2018
We present evidence on the short-term differences in airborne pollution levels in terms of weekday/weekend (WD/WN) and weekday/Sunday (WD/Sun) intervals. To this end, we analyzed the hourly data of important pollutants (nitric oxide (NO), nitrogen dioxide (NO2), ozone (O3) and carbon monoxide (CO)) using the data acquired in the Yong-San district of Seoul, Korea from 2009 to 2013. For each week, the pollutant ratio (Rw) was estimated through either WD/WN or WD/Sun. Here, a week is defined as Sunday through Saturday, WD as Monday through Friday and WN as Sunday and Saturday. The WD/Sun Rw geometric means (and range) were 2.02 (0.27–15.5) for NO, 1.29 (0.49–5.7) for NO2 and 0.89 (0.17–7.2) for O3 while the fraction of Rw (WD/Sun) > 1 were 81, 71 and 38%, respectively. NO and CO levels were much higher in October through March (during Autumn and Winter) than April through September (during Spring and Summer), reflecting the potential effect of fuel consumption (e.g., in terms of use patterns of nationwide city natural gas). Thus, we provide a broader interpretation on the occurrence patterns of the major pollutants (e.g., NO, NO2, O3 and CO) in relation to temporal changes in man-made activities. View Full-Text
Keywords: oxides of nitrogen; ozone; PM10; weekday-weekend effect; meteorological data oxides of nitrogen; ozone; PM10; weekday-weekend effect; meteorological data
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MDPI and ACS Style

Szulejko, J.E.; Adelodun, A.A.; Kim, K.-H.; Seo, J.W.; Vellingiri, K.; Jeon, E.-C.; Hong, J.; Brown, R.J.C. Short and Long-Term Temporal Changes in Air Quality in a Seoul Urban Area: The Weekday/Sunday Effect. Sustainability 2018, 10, 1248. https://doi.org/10.3390/su10041248

AMA Style

Szulejko JE, Adelodun AA, Kim K-H, Seo JW, Vellingiri K, Jeon E-C, Hong J, Brown RJC. Short and Long-Term Temporal Changes in Air Quality in a Seoul Urban Area: The Weekday/Sunday Effect. Sustainability. 2018; 10(4):1248. https://doi.org/10.3390/su10041248

Chicago/Turabian Style

Szulejko, Jan E.; Adelodun, Adedeji A.; Kim, Ki-Hyun; Seo, J. W.; Vellingiri, Kowsalya; Jeon, Eui-Chan; Hong, Jongki; Brown, Richard J.C. 2018. "Short and Long-Term Temporal Changes in Air Quality in a Seoul Urban Area: The Weekday/Sunday Effect" Sustainability 10, no. 4: 1248. https://doi.org/10.3390/su10041248

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