On July 16, 2026, the nationwide air quality for ultrafine particulate matter is forecast to be at the “Moderate” level.
According to the Korea Environment Corporation’s forecast overview, all regions are expected to range from “Good” to “Moderate.”
Regarding the causes, "While concentrations are expected to rise in the morning and at night due to the accumulation of 'Moderate'-level fine particulate matter from abroad—which began flowing in at dawn—and domestically generated fine particulate matter, concentrations will decrease in the afternoon due to smooth vertical (upper and lower layers) dispersion. Consequently, the daily average concentration is expected to be 'Moderate' in most of the central region and parts of the southeastern region."According to the analysis,
Since PM2.5 concentrations will not be high across all regions, there should be no significant disruption to outdoor activities.
Moderate — Seoul, North Jeolla, South Gyeongsang, North Gyeongsang, Ulsan, Busan, North Chungcheong, Sejong, Daejeon, Yeongseo, Southern Gyeonggi, Northern Gyeonggi, Incheon (13 regions)
Good — Jeju, South Jeolla, Gwangju, Daegu, South Chungcheong, Yeongdong (6 regions)
※ This article was automatically generated by a robot reporter based on air quality forecast data from the Korea Environment Corporation. (Release date: July 16, 2026, 5:00 PM)
