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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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AQ Forecast
Air Quality Forecast
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 Air Quality and Weather Bulletin for Delhi NCR (14.07.2020)

 1.  As per AQ-EWS models the air quality over Delhi NCR is likely to remain in Moderate category on 14.07.2020. The air quality is likely to improve and reach in Satisfactory category on 15.07.2020. The air quality is likely to improve further but remain in Satisfactory category on 16.07.2020.

 2. The predominant surface wind is likely to be coming from East/Southeast direction of Delhi having wind speed upto 15 kmph with partly cloudy sky with possibility of thundery development towards evening/ night on 14.07.2020. The predominant surface wind is likely to be coming from East/Southeast direction of Delhi having wind speed upto 18 kmph with partly cloudy sky and light rain/thundershowers accompanied with gusty winds (speed 30-40 kmph) towards evening on 15.07.2020. The predominant surface wind is likely to be coming from East/Southeast direction of Delhi having wind speed upto 15 kmph with generally cloudy sky and light rain/thundershowers accompanied with gusty winds (speed 30-40 kmph) on 16.07.2020.

 3.    Predicted maximum mixing depth is likely to remain from 3550 m on 14.07.2020, 3150 m on 15.07.2020 and 2400 m on 16.07.2020 over Delhi. Ventilation index is likely to be 17300 m2/s on  14.07.2020, 17500 m2/s on 15.07.2020 and 10000 m2/s on 16.07.2020. The ventilation index lower than 6000 m2/s with average wind speed less than 10 kmph is unfavourable for dispersion of pollutants.

 4.    No significant dust transport from neighbouring states to impact air quality over Delhi NCR.

 5. 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.

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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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