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AIR QUALITY EARLY WARNING SYSTEM FOR DELHI
MINISTRY OF EARTH SCIENCES, GOVT. OF INDIA
पृथ्वी विज्ञान मंत्रालय, भारत सरकार
(Project By : Indian Institute of Tropical Meteorology, Pune)

Air Quality Forecast (UTC)
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Near Realtime Observation At Delhi
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Air Quality Forecast
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 Air Quality and Weather Bulletin for Delhi NCR (23.01.2022)

  1. The air quality over Delhi-NCT is likely to improve further and reach in Moderate category owing to rain, strong winds and better ventilation conditions on 23.01.2022. The air quality is likely to remain in Poor category on 24.01.2022 and 25.01.2022. The Outlook for subsequent 5 Days: The air quality is likely to remain largely in Poor category.
  2. The predominant surface wind is likely to be coming from Southeast directions of Delhi having wind speed 08-16 kmph with partly cloudy sky and possibility of very light rain/drizzle on 23.01.2022. The predominant surface wind is likely to be coming from Northwest direction of Delhi having wind speed upto 08 kmph with partly cloudy sky and moderate fog in the morning on 24.01.2022. The predominant surface wind is likely to be coming from Northwest direction of Delhi having wind speed 06-10 kmph with partly cloudy sky and moderate fog in the morning on 25.01.2022.
  3. Predicted maximum mixing depth is likely to be approx 750 m on 23.01.2022, 1300 m on 24.01.2022 and 1500 m on 25.01.2022 over Delhi. Ventilation index is likely to be approx. 2500 m2/s on 23.01.2022, 5500 m2/s on 24.01.2022 and 5800 m2/s on 25.01.2022. The ventilation index lower than 6000 m2/s with average wind speed less than 10 kmph is unfavorable for dispersion of pollutants.
  4. Detailed forecast analysis and verification can be seen at https://ews.tropmet.res.in.

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Current AQI
Forecast
Mid Visibility IGIA
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Air Quality Index Range

Good

AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.

Satisfactory

AQI: Satisfactory (51 - 100)
Air quality is considered satisfactory, and air pollution poses little or no risk.

Moderate

AQI: Moderate (101 - 200)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Poor

AQI: Poor for Sensitive Groups (201 - 300)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.

Very Poor

AQI: Very Poor (301 - 400)
Health alert: everyone may experience more serious health effects.

Severe

AQI: Severe (401 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.

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Visibility Range

CAT - IIIC

VISIBILITY: Below 50 M
CAT - IIIB

VISIBILITY: FROM 50M TO 174M
CAT - IIIA

VISIBILITY: FROM 175M TO 299M

CAT - II

VISIBILITY: FROM 300M TO 549M

CAT -I

VISIBILITY: 500M AND ABOVE

Air Quality Forecast Over India

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