合肥中度污染超过24小时

Core Viewpoint - Hefei's air quality has been reported to remain at a moderate pollution level over the past 24 hours, with an AQI index reaching or exceeding 150, indicating significant air quality concerns in the region [1]. Group 1: Air Quality Status - As of December 19, the air quality in Hefei has consistently been at a moderate pollution level, affecting residents' perception of the sky's clarity [1]. - The air quality index (AQI) reached or exceeded 150, categorizing it as moderate pollution [1]. Group 2: Meteorological Forecast - The meteorological department predicts that from December 21 to 22, northern Anhui will experience additional haze conditions [1]. - On December 19, the air diffusion conditions in the western and northern regions of the Yangtze River Delta were reported as average, with light to moderate haze present [1]. - A short-term intensification of haze weather is expected in most areas due to the transmission of upstream pollutants starting early on December 20 [1]. - From December 23 to 25, the region will benefit from improved air diffusion conditions due to the influence of cold air [1].