局地有能见度不足200米的强浓雾！29日至30日北方部分地区有沙尘天气

Group 1 - The article reports on weather conditions in various regions of China, highlighting dust storms and high PM10 concentrations in areas such as Xinjiang, Inner Mongolia, and parts of North China [1][11] - Specific regions like the Beijing-Tianjin-Hebei area and the Yangtze River Delta are experiencing elevated PM10 levels and dust weather, with warnings issued for visibility issues [4][5] - The article notes that the Huabei and Huazhong regions will have good atmospheric diffusion conditions with no significant haze expected in the coming week [7][8] Group 2 - The report indicates that from the morning of the 29th to the 30th, parts of the Sichuan Basin and northern Chongqing will experience dense fog with visibility below 200 meters [3][9] - The northeastern region is expected to have good atmospheric diffusion conditions, although some areas may experience light haze during cold air intervals [10] - The article emphasizes that the western and southwestern regions will also benefit from favorable atmospheric conditions, with no significant haze forecasted [8][9]