Fireworks or Vehicles: What Drives Delhi's Diwali Air Pollution?
Delhi's air pollution during Diwali stems from both firecrackers and motor vehicles, each with a different impact. Vehicle exhaust adds substantially to the city's PM2.5 levels across the entire year. Firecrackers add to pollution mainly during the festival period, but they cause sudden, sharp spikes in harmful particles. Together, these sources make the city's air quality harder to manage during Diwali, particularly when weather conditions are unfavourable.
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