![[Photo] Ultrafine Dust 'Bad'](https://cphoto.asiae.co.kr/listimglink/1/2022110909471610183_1667954836.jpg)
On the 9th, when the fine dust concentration in the Seoul metropolitan area and Chungcheong region showed a 'bad' level, the Jongno area in Seoul appeared hazy due to fine dust and morning fog./Reporter Kim Hyun-min kimhyun81@
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