Delhi faces very poor air quality with an AQI around 350-428 across most stations, IIT Delhi highest at 428, amid upcoming drizzle and cold temps. Delhi's AQI stood at 353 on November 15, but several areas, including IIT Delhi and ITO, recorded severe pollution levels above 400. A global analysis covering more than 200 million cumulative participant observations highlights the growing metabolic consequences of prolonged exposure to fine particulate matter, particularly.