德里-NCR宣布发生严重的空气污染紧急情况,触发了严格的措施,因为AQI击中401。 Delhi-NCR declared severe air pollution emergency, triggering strict measures as AQI hit 401.

由于高PM2.5水平, 德里-NCR地区空气质量下降至"严重"类, AQI达到401级, 于2025年12月13日启动了分级应对行动计划的第三阶段. Delhi-NCR activated Stage III of the Graded Response Action Plan on December 13, 2025, after air quality plunged into the "severe" category with the AQI reaching 401 due to high PM 2.5 levels. 阻塞的风和不利的天气受困污染物,促使禁止建筑、拆除、老旧车辆和柴油发电机,以及学校关闭五级以下班级和混合工作安排。 Stagnant winds and unfavorable weather trapped pollutants, prompting bans on construction, demolition, older vehicles, and diesel generators, along with school closures for classes up to five and hybrid work arrangements. 由冬季条件、车辆排放和区域污染源驱动的危机导致多个城市的空气质量出现危险,一些地区超过430阿QI。 The crisis, driven by winter conditions, vehicle emissions, and regional pollution sources, led to hazardous air quality across multiple cities, with some areas exceeding AQI 430.