The ozone advisory issued for four districts in the southeastern area of Seoul has been lifted.


Ozone Advisory Lifted in Four Southeast Districts of Seoul City View original image

On the 1st, the Seoul Institute of Health and Environment announced that the ozone advisory for the southeastern area of Seoul was lifted around 5 p.m.


The ozone advisory was issued around 4 p.m. that day for the southeastern area of Seoul (Seocho, Gangnam, Songpa, Gangdong). The ozone advisory is issued when the average hourly ozone concentration is 0.12 ppm or higher and lifted when it falls below that level. If one or more districts in the region meet the issuance criteria, the advisory is issued for the entire region.



As of 4 p.m., the average ozone concentration in Songpa-gu was 0.1209 ppm, but it dropped to 0.1132 ppm by 5 p.m.


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