Toxic haze in Delhi despite 'green' Diwali
Summary
Delhi experienced severe air pollution and a toxic haze following the Diwali festival, despite efforts to reduce pollution using "green" fireworks. The city's Air Quality Index (AQI) reached levels considered "very poor" due to the use of fireworks and other pollution sources. The local population continues to face significant air quality challenges, partly due to ineffective enforcement of pollution control measures.Key Facts
- Delhi's air quality worsened after the Diwali festival, creating a toxic haze.
- Air Quality Index (AQI) in Delhi reached a level of 360, classified as "very poor."
- Firecrackers during Diwali contributed to the pollution, despite a court order to use less polluting "green" fireworks.
- Delhi's air quality already suffered from pollution due to vehicle emissions, dust, and nearby crop stubble burning.
- The World Health Organization recommends that PM 2.5 exposure should not exceed 15 micrograms per cubic meter over 24 hours, but Delhi's levels are 24 times higher than this guideline.
- Enforcement of the ban on traditional firecrackers has been weak, leading to continued sales and use.
- The Supreme Court of India allowed limited use of "green" crackers, which are less polluting but still harmful.
- Low wind speeds during winter months worsen Delhi's pollution situation by trapping pollutants close to the ground.
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