Residents of Noida woke up to choking smog on Tuesday, with the Air Quality Index (AQI) hitting a hazardous 602, according to real-time data from the Central Pollution Control Board (CPCB).
The severe pollution, driven by stubble burning in neighboring states, vehicular emissions, and stagnant winds, marks a sharp deterioration from Monday's already poor levels of around 400. PM2.5 concentrations exceeded 500 micrograms per cubic meter in sectors like 62 and 125, far above the safe limit of 60.
Health experts urged vulnerable groups—children, the elderly, and those with respiratory issues—to stay indoors and use air purifiers. The Uttar Pradesh government activated Stage III of the Graded Response Action Plan, including bans on construction and odd-even vehicle restrictions.
Schools in nearby Delhi-NCR considered online classes, while hospitals reported a 20% spike in pollution-related cases. Forecasts predict no relief until winds pick up later this week, underscoring the annual winter crisis in the region.