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November pain: Air quality severe in parts of Delhi

By · Via Times of India · Published by Everything Blog

In short

The city's overall air quality index reached 350 on Tuesday, with Jahangirpuri recording the worst local reading at 462. According to the Indian Institute of Tropical Meteorology, emissions from stubble burning were projected to climb to 15.5 percent on Tuesday, nearly rivaling vehicular exhaust. Modeling indicates farm fire contributions could climb to 22 percent by November 5, locking regional air quality into the very poor or severe categories for six days. Below-normal temperatures, including a daytime high of 29.1 degrees Celsius at Safdarjung, continue to inhibit the dispersal of pollutants.

Key points

  • Smoke from regional crop stubble fires is forecasted to climb to 22 percent of total poll…: Smoke from regional crop stubble fires is forecasted to climb to 22 percent of total pollution by November 5.
  • Cold weather and low temperatures are blocking pollutant dispersal and worsening health r…: Cold weather and low temperatures are blocking pollutant dispersal and worsening health risks across New Delhi.
  • Existing GRAP-II anti-pollution measures have not stopped air quality from falling toward…: Existing GRAP-II anti-pollution measures have not stopped air quality from falling toward severe thresholds citywide.

Sources checked by our analysis pipeline: 1

NEW DELHI: The city's

air quality index read 350 at 4pm Tuesday - sliding further within the very poor category since Monday - while at least eight areas slipped into severe air quality. Monitoring agencies expect the rest of the city to deteriorate to severe air quality soon.

North Delhi's Jahangirpuri was the most polluted with an AQI of 462, followed by Alipur (430), Bawana (421), DTU (445), Mundka (422), North Campus (405), Punjabi Bagh (449), and Vivek Vihar (425). Safdarjung, the base station, recorded very poor air quality.

The share of stubble burning emissions from neighbouring states in Delhi's polluted air has increased, the Indian Institute of Tropical Meteorology has said.

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The decision support system's models showed 8.5% share of stubble burning Monday, expected to spike to 15.5% Tuesday. This would almost equal vehicular pollution, which dominates the city's emission inventory.

Weather adds to capital's air pollution woes IITM expects stubble burning contribution to rise to 20% by Nov 4 and 22% by Nov 5. The air quality is likely to be very poor…

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