Severe Air Pollution to grip Delhi in next 48 hrs! Why National Capital choking when Stubble burning down 70-80%?

Prameyanews English

Published By : Sanjeev Kumar Patro | November 26, 2024 5:04 PM

Severe Air Pollution to grip Delhi in next 48 hrs! Why National Capital choking when Stubble burning down 70-80%?

Bhubaneswar: The air over national Capital Delhi still chokes. The Air quality Index has upgraded from Severe Plus to Very Poor grade. AQI is still hovering at over 310 in almost all the 38 places where the air quality is measured. At 4 pm Tuesday, the AQI hovers between 312 and 385 at the 38 measuring stations. 

Alas! Delhiites have no respite. The forecast by IMD and IITM shows that the air quality in Delhi will again plunge to severe category. With the northwest wind speed slowing down to 4-6kmph from 8kmpkh, and the mixing depth falling to as low as 1150m in next 48 hours, the ventilation index will only degrade to around 2000m2/s. 

As a consequence, the AQI in Delhi will again slip to Severe Plus category from Nov 28. 

WHY DELHI CHOKING?

The Union Government in Lok Sabha has recently reasoned that air pollution in Delhi and NCR is a collective result of multiple factors like high level of anthropogenic activities arising from various sectors

  • Vehicular Pollution
  • Industrial Pollution
  • Dust from Construction and Demolition activities
  • Road and Open Areas Dust
  • Biomass Burning 
  • Municipal Solid Waste burning 
  • Fires in Landfills 

It said, “During post-monsoon and winter months, lower temperature, lower mixing heights, inversion conditions and stagnant winds lead to trapping of the pollutants resulting in high pollution in the region. And the Ministry of Environment and Forests added that this is further aggravated due to the emissions from episodic events like 

  • Stubble burning
  • Firecrackers

With fire crackers episode over, what is that chocking the Delhi Air?

IS IT STUBBLE BURNING?

Take a look at the stubble burning data (for the period of 15 September to 18 November) released by Union Environment, Forest and Climate Change Ministry. 

             PUNJAB

                 HARYANA

                  UTTAR PRADESH

   2022 

  2023

 2024

48489

33719

9655


   2022 

  2023

 2024

  3380

  2052

 1118


   2022 

  2023

 2024

      72

    108

  192


A glance at the above data reveals the following.

  • In Punjab, the cases of stubble burning down by over 80% in the last 3-years.
  • In Haryana, also, the cases are down by 67%
  • Only in UP, which has a very minor number as on date, the cases are up by 167%.
  • The UP rise seems alarming. But its contribution to present pollution is negligible.
  • Moreover, the wind flowing pattern is northwest.
  • Had it been from north east, UP stubble could have held trouble for the national Capital.
  • The above data crunching shows Stubble burning has greatly reduced but the AQI still deteriorates to Severe plus.
  • So, stubble burning is a factor. But not the prime factor.

HOW STUBBLE BURNING DOWN?

In order to curb the air pollution over Delhi from the episodic stubble burning, the Ministry of Power, as per revised model contract for use of biomass in Thermal Power Plants, has mandated them to use minimum 50% of raw material as stubble/ straw/crop residue of rice paddy sourced from Punjab, Haryana or NCR.

As per last co-firing status available with the Ministry of Power till October, 2024, shows that out of targeted 22.64 LMT for FY 2024-25, 11 TPPS within 300 Km of Delhi co-fired 6.04 LMT till October, 2024 (equal to 28%), compared to 2.58LMT (equal to 14 %) against targeted 18.03 LMT in FY 2023-24.

The above data shows cases of stubble burning can be reduced to ZERO, if the TPPs utilize their full quota of biomass firing.

IS INDUSTRIAL POLLUTION BEHIND?

Thermal power plants (TPPs) are widely known as air spoilers. There are 11 TPPS within 300 km of Delhi. The Union Environment and Forest Ministry disclosed that the emission standards for power plants have been notified and are enforced by State Pollution Control Boards (SPCBs).

The BOTTOMLINE is Delhi air pollution is mainly attributed to Vehicular Pollution, dust from construction and demolition activities and road and open Areas Dust, though stubble burning is also a contributor.

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Severe Air Pollution to grip Delhi in next 48 hrs! Why National Capital choking when Stubble burning down 70-80%?
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Severe Air Pollution to grip Delhi in next 48 hrs! Why National Capital choking when Stubble burning down 70-80%?

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