Delhi Air Quality Plummets to ‘Severe’ Levels: AQI Hits 436, Stage 4 Curbs Imposed
Delhi’s air quality worsened recently, with the air quality index (AQI) reaching 396, categorized as “very poor.” Some monitoring stations even reported levels above 400, placing them in the “severe” category. At 7 am, Anand Vihar recorded an AQI of 436, while Ashok Vihar reached 419.
The AQI scale is as follows:
– 0-50: Good
– 51-100: Satisfactory
– 101-200: Moderate
– 201-300: Poor
– 301-400: Very Poor
– 401-450: Severe
– Above 450: Severe Plus
How can residents contribute to improving air quality in their cities?
Interview with Dr. Riya Sharma, Air Quality Specialist
NewsDirectory3: Thank you for joining us today, Dr. Sharma. Recently, Delhi’s air quality has deteriorated significantly, with the AQI reaching alarming levels. Can you explain what these numbers mean for residents?
Dr. Riya Sharma: Certainly. The Air Quality Index (AQI) is a standardized way of communicating how polluted the air currently is. An AQI of 396 falls in the “very poor” category, meaning there’s a higher chance of adverse health effects for sensitive groups, including children, the elderly, and those with pre-existing health conditions. When levels exceed 400, as we saw in areas like Anand Vihar and Ashok Vihar, the air quality enters the “severe” category, posing risks to the general population as well.
NewsDirectory3: What specific factors are contributing to this worsening air quality in Delhi?
Dr. Riya Sharma: Several factors are at play here. Seasonal changes, such as shallow fog and low temperatures—around 12.8 degrees Celsius—combined with high humidity levels of 96% can trap pollutants close to the ground. This meteorological phenomenon exacerbates pollution levels, especially when combined with local emissions from vehicles and construction activities.
NewsDirectory3: The Supreme Court upheld Stage 4 pollution controls recently. Can you discuss the significance of these measures?
Dr. Riya Sharma: Yes, the upholding of Stage 4 measures from the Graded Response Action Plan is crucial. It includes actions such as restricting truck entries for non-essential goods and halting construction projects, which are significant sources of air pollution. These measures aim to cut down emissions from one of the largest contributors to air quality issues in Delhi.
NewsDirectory3: Additionally, the CAQM has introduced hybrid learning for schools. How might this affect children’s health and education?
Dr. Riya Sharma: The hybrid learning mandate is intended to protect children from exposure to harmful pollution levels that can adversely affect their lung development and overall health. While it may present challenges for students and educators in terms of school attendance and learning continuity, protecting the health of children is paramount, especially given that many studies indicate that a significant percentage of children in Delhi suffer from lung-related health issues due to poor air quality.
NewsDirectory3: With November already seeing 18 days of “very poor” air quality, what future steps can residents expect or take?
Dr. Riya Sharma: Residents should remain informed and take precautions during high pollution periods, such as limiting outdoor activities and wearing masks. On a broader scale, it’s essential for the government and local authorities to implement and enforce long-term strategies that address the root causes of air pollution, including increasing green spaces, enhancing public transport, and promoting cleaner technologies. Through collective effort and sustained action, we can hope to significantly improve air quality in Delhi.
NewsDirectory3: Thank you, Dr. Sharma, for your insights on this critical issue affecting Delhi residents.
On Tuesday, Delhi experienced shallow fog and temperatures around 12.8 degrees Celsius. The humidity was measured at 96%, contributing to the chilly air.
The Supreme Court recently upheld Stage 4 pollution controls from the Graded Response Action Plan. These measures include banning truck entry for non-essential goods, except for those carrying essentials or using clean fuels. Light commercial vehicles registered outside Delhi are also banned unless they are electric or compliant with specific fuel standards. Construction at public projects is fully halted.
The Commission for Air Quality Management (CAQM) mandated hybrid learning for all classes up to 12th grade in Delhi and neighboring areas. The Delhi Government’s Directorate of Education has instructed all schools to follow this order.
On Sunday, air quality in Delhi improved slightly, with a 24-hour average AQI of 349, moving to the “very poor” category for the first time in weeks. November has seen 18 days of “very poor” air quality, six days classified as “severe,” and two days in the “severe plus” category.