Delhi records season's worst air quality ahead of Diwali, pollution levels inching towards 'severe plus emergency'

The national capital saw no respite on Monday as Delhi recorded its worst air quality of the season, with the pollution levels inching towards 'severe plus emergency' due to various factors including a change in wind direction and tampant stubble burning in neighbouring states. According to Central Pollution Control Board (CPCB) data, the PM2.5 (particles in the air with a diameter of less than 2.5 micrometres) and PM10 concentrations touched 365 and 503 respectively, touching the 'severe-plus emergency' category. PM2.5 levels above 300 and PM10 levels above 430 are considered "severe-plus emergency" category.

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