新华社快讯：2024年全国优良天数比例比2020年上升2.4个百分点

Core Insights - The ecological environment quality in China has continuously improved during the "14th Five-Year Plan" period [1] Summary by Categories - Air Quality Improvement - By 2024, the concentration of fine particulate matter in cities at the prefecture level and above is expected to decrease by 16.3% compared to 2020 [1] - The proportion of days with good air quality is projected to increase by 2.4 percentage points compared to 2020 [1] - Water Quality Enhancement - The proportion of surface water quality monitoring points with good water quality has reached 90.4%, surpassing 90% for the first time [1]