On July 24, 2026, the nationwide air quality for ultrafine particulate matter is forecast to be at the "Good" level.
According to the Korea Environment Corporation’s forecast overview, all regions are expected to range from “Good” to “Moderate.”
Regarding the causes, "In most of the central and western regions and parts of the southeastern region, concentrations are expected to rise in the morning and at night as fine dust lingering from the previous day and domestically generated fine dust accumulate due to stagnant air and converging air currents; however, concentrations are expected to decrease in the afternoon due to vertical (upper and lower layers) dispersion, resulting in a daily average concentration of 'Moderate,'""
Since PM2.5 concentrations will not be high across all regions, there should be no significant disruption to outdoor activities.
Moderate — Seoul, Ulsan, Southern Gyeonggi, Incheon (4 regions)
Good — Jeju, South Jeolla, North Jeolla, Gwangju, South Gyeongsang, North Gyeongsang, Daegu, Busan, South Chungcheong, North Chungcheong, Sejong, Daejeon, Yeongdong, Yeongseo, Northern Gyeonggi (15 regions)
※ This article was automatically generated by a robot reporter based on air quality forecast data from the Korea Environment Corporation. (Release date: July 24, 2026, 5:00 a.m.)
