Delhi's air quality plummets to severe levels post-Diwali celebrations

The National Capital Region experienced a significant deterioration in air quality following Diwali festivities, with the overall Air Quality Index (AQI) reaching 366 on November 1st. Fifteen air quality monitoring stations across Delhi recorded AQI readings exceeding 400, placing them in the 'severe' category that poses serious health risks to vulnerable populations including children, elderly persons, and those with respiratory conditions.

The spike in pollution levels immediately after Diwali is primarily attributed to firecracker emissions combined with existing atmospheric conditions. The severe readings underscore the recurring challenge Delhi faces during the festive season, when increased combustion sources coincide with meteorological factors that trap pollutants in the lower atmosphere.

Authorities typically issue health advisories when AQI breaches the 400 mark, recommending that residents limit outdoor activities and consider wearing N95 masks. Schools and workplaces may implement contingency measures including work-from-home arrangements and online classes to minimise public exposure to hazardous air.

The post-Diwali air quality crisis remains an annual concern for India's capital, prompting ongoing debates about firecracker regulations and the need for complementary pollution control measures. Environmental agencies continue to monitor conditions and issue real-time updates to help residents make informed decisions about outdoor activities.