On July 16, 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, "While concentrations are expected to rise due to the accumulation of 'Moderate'-level foreign particulate matter—which began flowing in at dawn—and domestically generated particulate matter during the morning and night, 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, outdoor activities are not expected to be significantly affected.
Moderate — Seoul, North Gyeongsang, Ulsan, South Chungcheong, North Chungcheong, Yeongseo, Southern Gyeonggi, Northern Gyeonggi, Incheon (9 regions)
Good — Jeju, South Jeolla, North Jeolla, Gwangju, South Gyeongsang, Daegu, Busan, Sejong, Daejeon, Yeongdong (10 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, 11:00 a.m.)
