Core Viewpoint - A dust storm is currently affecting Shanghai, leading to severe air pollution with PM10 levels reaching 372 micrograms per cubic meter and an air quality index of 232, indicating heavy pollution [1] Group 1: Air Quality Impact - The PM10 concentration in Shanghai rose rapidly, reaching 372 micrograms per cubic meter by 1 PM, resulting in a severe air quality index of 232 [1] - Visibility has decreased to between 5 kilometers and 11 kilometers due to the dust [1] Group 2: Causes of Pollution - Experts attribute the prolonged pollution to two main factors: reduced wind speed leading to stagnant conditions that hinder pollutant dispersion, and a change in wind direction causing previously blown dust to return to the area [1] Group 3: Future Projections - A mild to moderate pollution process is expected today due to the lingering dust, but conditions are anticipated to improve tomorrow, allowing for the end of the dust transmission and a gradual return to good air quality [1] Group 4: Event Considerations - The Shanghai Marathon is scheduled for November 30, and current assessments indicate that the dust storm will have subsided by then, posing no impact on the event [1]
沙尘滞留回流 今轻度至中度污染 明天空气质量将逐步恢复至良级水平 对上马没有影响
Jie Fang Ri Bao·2025-11-28 01:40