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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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Delhi Air Quality Forecast (400m Resolution)
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Observation
Near Realtime Observation At Delhi
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Forecast
Air Quality Forecast

Bulletin & Message

 Air Quality Bulletin for Delhi NCR (18.11.2019 Afternoon)

  1. As per AQ EWS models, the air quality is likely to remain in Poor category during the day on 18.11.2019 owing to strong surface wind but start deteriorating from evening and remain in upper end of Poor category. The air quality is likely to deteriorate on 19.11.2019 and reach upper end of very poor category owing to weak winds. The air quality is likely to further deteriorate on 20.11.2019 to remain in upper end of very poor and may reach in severe category.
  2. The predominant surface wind is coming from Northwest direction in Delhi having wind speed upto 15 kmph on 18.11.2019 with partly cloudy sky, haze and strong surface winds during the day (speed 15-20 kmph).The predominant surface wind is likely be coming from North direction of Delhi having low wind speed up to 04 kmph on 19.11.2019 with mainly clear sky and shallow fog in the morning.  The predominant surface wind is likely to be calm in Delhi on 20.11.2019 with partly cloudy sky and moderate fog in the morning.
  3. Predicted maximum mixing depth is likely to remain 1500 m on 18.11.2019 & 19.11.2019 and 1400 m on 20.11.2019 over Delhi. Ventilation index is likely to be 10000 m2/s on 18.11.2019, 6000m2/s on 19.11.2019 and 1000m2/s on 20.11.2019. The ventilation index lower than 6000 m2/s with average wind speed less than 10 kmph is unfavourable for dispersion of pollutants.
  4. Stubble burning fire points in Haryana, Punjab and neighbouring Pakistan are observed.
  5. No significant dust transport from neighbouring states in Delhi is expected.
  6. Location specific AQ forecast can be seen at safar.tropmet.res.in. Detailed forecast analysis and verification can be seen at https://ews.tropmet.res.in.

Total Visitors : 3776
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Current AQI
Forecast
Mid Visibility IGIA
X

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.

X

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

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