On August 22, 2026, the nationwide air quality for ultrafine particulate matter is forecast to be "Good."
In its forecast overview, the Korea Environment Corporation stated that all regions are expected to range from “Good” to “Moderate.”
Regarding the cause, the agency analyzed that “air quality is expected to be generally clean due to smooth vertical (upper and lower layers) dispersion.”
Since PM2.5 concentrations will not be high in any region, there should be no significant disruption to outdoor activities.
[PM2.5 Ratings by Region]
Moderate — Ulsan (1 location)
Good — Seoul, Jeju, South Jeolla, North Jeolla, Gwangju, South Gyeongsang, North Gyeongsang, Daegu, Busan, South Chungcheong, North Chungcheong, Sejong, Daejeon, Yeongdong, Yeongseo, Southern Gyeonggi, Northern Gyeonggi, Incheon (18 locations)
Moderate — Ulsan (1 location)
Good — Seoul, Jeju, South Jeolla, North Jeolla, Gwangju, South Gyeongsang, North Gyeongsang, Daegu, Busan, South Chungcheong, North Chungcheong, Sejong, Daejeon, Yeongdong, Yeongseo, Southern Gyeonggi, Northern Gyeonggi, Incheon (18 locations)
※ This article was automatically generated by a robot reporter based on air quality forecast data from the Korea Environment Corporation. (Release date: August 22, 2026, at 5:00 a.m.)
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