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Open AccessArticle

Contribution of Local and Transboundary Air Pollution to the Urban Air Quality of Fukuoka, Japan

1
Center for Regional Environmental Research, National Institute for Environmental Studies, Ibaraki 305-8506, Japan
2
Department of Earth System Sciences, Fukuoka University, Fukuoka 814-0180, Japan
3
Fukuoka Institute for Atmospheric Environment and Health, Fukuoka University, Fukuoka 814-0180, Japan
4
Environmental Impact Research Group, Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology, Ibaraki 305-8569, Japan
*
Author to whom correspondence should be addressed.
Academic Editors: Makiko Nakata and Mizuo Kajino
Atmosphere 2021, 12(4), 431; https://doi.org/10.3390/atmos12040431
Received: 5 March 2021 / Revised: 21 March 2021 / Accepted: 23 March 2021 / Published: 27 March 2021
(This article belongs to the Special Issue Aerosol Pollution in Asia)
Transboundary air pollution (TAP) and local air pollution (LAP) influence the air quality of urban areas. Fukuoka, located on the west side of Japan and affected by TAP from the Asian continent, is a unique example for understanding the contribution of LAP and TAP. Gaseous species and particulate matter (PM) were measured for approximately three weeks in Fukuoka in the winter of 2018. We classified two distinctive periods, LAP and TAP, based on wind speed. The classification was supported by variations in the concentration of gaseous species and by backward trajectories. Most air pollutants, including NOx and PM, were high in the LAP period and low in the TAP period. However, ozone was the exception. Therefore, our findings suggest that reducing local emissions is necessary. Ozone was higher in the TAP period, and the variation in ozone concentration was relatively small, indicating that ozone was produced outside of the city and transported to Fukuoka. Thus, air pollutants must also be reduced at a regional scale, including in China. View Full-Text
Keywords: ozone; NOx; PM; number concentration; wind speed; transboundary air pollution; local air pollution ozone; NOx; PM; number concentration; wind speed; transboundary air pollution; local air pollution
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MDPI and ACS Style

Yoshino, A.; Takami, A.; Hara, K.; Nishita-Hara, C.; Hayashi, M.; Kaneyasu, N. Contribution of Local and Transboundary Air Pollution to the Urban Air Quality of Fukuoka, Japan. Atmosphere 2021, 12, 431. https://doi.org/10.3390/atmos12040431

AMA Style

Yoshino A, Takami A, Hara K, Nishita-Hara C, Hayashi M, Kaneyasu N. Contribution of Local and Transboundary Air Pollution to the Urban Air Quality of Fukuoka, Japan. Atmosphere. 2021; 12(4):431. https://doi.org/10.3390/atmos12040431

Chicago/Turabian Style

Yoshino, Ayako; Takami, Akinori; Hara, Keiichiro; Nishita-Hara, Chiharu; Hayashi, Masahiko; Kaneyasu, Naoki. 2021. "Contribution of Local and Transboundary Air Pollution to the Urban Air Quality of Fukuoka, Japan" Atmosphere 12, no. 4: 431. https://doi.org/10.3390/atmos12040431

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