What are the key factors that contribute to the pollution in Delhi after Deepavali

Day after Deepavali, Delhi becomes most polluted city globally
  • Firecrackers: The excessive use of firecrackers during Deepavali leads to the release of harmful pollutants such as sulphur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (CO), and particulate matter (PM).
  • Stubble burning: The burning of crop residues in nearby agricultural regions during this time contributes significantly to air pollution in Delhi. The smoke and pollutants from these fires get transported by wind to the city.
  • Vehicle emissions: The high number of vehicles on the roads adds to the pollution. The increased traffic during Deepavali exacerbates the situation.
  • Industrial pollutants: The presence of numerous industries emitting pollutants in and around Delhi is also a key factor contributing to pollution levels.
  • Weather conditions: Delhi's geography, with its bowl-like topography and lack of proper wind movement, causes pollutants to get trapped, leading to the formation of a toxic smog layer.
These factors act together, resulting in a significant increase in pollution levels in Delhi after Deepavali, making it one of the most polluted cities globally.
Answered a year ago
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