Ozone Warning Lifted After 3 Hours in Three Northwestern Districts of Seoul

The ozone advisory issued for three districts in the northwest area of Seoul was lifted at 6 p.m. on the 8th, three hours after it was announced, according to the Korea Environment Corporation under the Ministry of Environment.

The affected districts are Eunpyeong-gu, Seodaemun-gu, and Mapo-gu.

The hourly average ozone concentration in the lifted areas was 0.1021 ppm (parts per million) as of 6 p.m.

An ozone advisory is issued when the 1-hour average ozone (O₃) concentration in the air reaches 0.12 ppm or higher, an ozone alert at 0.30 ppm or higher, and an ozone severe alert at 0.50 ppm or higher.

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