CCTV News: According to the "Hunan Weather" Weibo, the Hunan Provincial Meteorological Observatory issued a yellow haze warning at 16:00 on January 23: It is expected that moderate haze will occur in Changsha, Zhuzhou, Xiangtan, Hengyang, Shaoyang, Yueyang, southern Changde, Yiyang, Chenzhou, Yongzhou and Loudi, please pay attention to prevention.