On September 29, 2026, the national air quality for fine particulate matter is forecast to be "Good."
According to the Korea Environment Corporation’s forecast overview, all regions are expected to be rated “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, outdoor activities are not expected to be significantly affected.
[PM2.5 Ratings by Region]
Moderate — South Gyeongsang (1 location)
Good — Seoul, Jeju, South Jeolla, North Jeolla, Gwangju, North Gyeongsang, Ulsan, Daegu, Busan, South Chungcheong, North Chungcheong, Sejong, Daejeon, Yeongdong, Yeongseo, Southern Gyeonggi, Northern Gyeonggi, Incheon (18 locations)
Moderate — South Gyeongsang (1 location)
Good — Seoul, Jeju, South Jeolla, North Jeolla, Gwangju, North Gyeongsang, Ulsan, 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: September 29, 2026, 5:00 a.m.)
