In line with the National Academy of Environmental Sciences associated with Ministry of Environment, the average daily concentration of ultrafine dirt (PM -2.5) in Seoul was 118㎍/㎥ until 3 pm on the same time.
환경부 국립환경과학원에 따르면 이날 오후 3시까지 서울의 하루 평균 초미세먼지(PM -2.5) 농도는 118㎍/㎥를 기록했다.