IITM

IITM

IMD SAFAR GAW

SAFAR-India

System of Air Quality and Weather Forecasting And Research
Ministry of Earth Science, Govt. of India.
Indian Institute of Tropical Meteorology, Pune

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A Research based initiative of integrating Air Quality with Health Advisories and Food Security.
A dedicated Air Quality Information Service for Indian Metropolitan Cites to make India self sufficient
in providing frontier research based Scientific accrediated robust Air Quality Forecasting system.


National Certification - ISO 9001:2008 Accredited
International Recognition - World Meteorological Organization (GURME - Pilot)



SAFAR-Air Quality Forecast (Delhi, Mumbai, Pune and Ahmedabad) :     SHORT RANGE FORECAST:The overall Delhi AQI is in the moderate category as forecasted. AQI has improved marginally due to high ventilation and rainfall in Rajasthan reducing dust intrusion. The predominant surface wind direction is south-westerly high surface winds are expected for the next two days. Favorable ventilation condition is likely to keep Delhi AQI in the moderate category for the next three days. Stubble burning fires observed yesterday around Punjab and neighboring border regions. Air quality is in the good category for Pune. Mumbai and Ahmedabad AQI in the lower end of the satisfactory category. Pune AQI is likely to stay good for the next three days. Mumbai AQI is likely to stay at good to satisfactory category for the next two days and Ahmedabad AQI likely to stay at the satisfactory category.               Extended Range Outlook: Monsoon withdrawal is getting delayed. IMD has forecasted the commencement of withdrawal of monsoon around 28th September, this late withdrawal of monsoon and the associated high-pressure system and stagnant wind conditions are likely to influence air quality negatively by the end of the next week. However, the expected withdrawal date is still earlier than last year. The deterioration in AQI is likely to be less as compared to 2019 in the last week of September to the 1st week of October.      




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FACTORS AFFECTING DELHI AIR QUALITY: STATUS OF WINDS, DUST, FIRE & FOG MAP
TRENDING SUMMARY
(27-09-2020)
Delhi AQ Update:*    

SHORT RANGE FORECAST: :* The overall Delhi AQI is in the moderate category as forecasted. AQI has improved marginally due to high ventilation and rainfall in Rajasthan reducing dust intrusion. The predominant surface wind direction is south-westerly high surface winds are expected for the next two days. Favorable ventilation condition is likely to keep Delhi AQI in the moderate category for the next three days. Stubble burning fires observed yesterday around Punjab and neighboring border regions.

Air quality is in the good category for Pune. Mumbai and Ahmedabad AQI in the lower end of the satisfactory category. Pune AQI is likely to stay good for the next three days. Mumbai AQI is likely to stay at good to satisfactory category for the next two days and Ahmedabad AQI likely to stay at the satisfactory category.

Extended Range Outlook: Monsoon withdrawal is getting delayed. IMD has forecasted the commencement of withdrawal of monsoon around 28th September, this late withdrawal of monsoon and the associated high-pressure system and stagnant wind conditions are likely to influence air quality negatively by the end of the next week. However, the expected withdrawal date is still earlier than last year. The deterioration in AQI is likely to be less as compared to 2019 in the last week of September to the 1st week of October.

  FACTORS AFFECTING DELHI AIR QUALITY :

  Today's most dominating factor to drive Air quality towards deterioration is marked in 'RED'. :

  Favorable means helps improve Air Quality; Unfavorable means can deteriorate Air Quality and moderate means negligible effect on Air Quality.

(1)  RAINFALL : No –Negligible effect.

(2)  LOCALIZED DUST LIFTING: : Low–Favorable

(3)  LONG DISTANCE DUST TRANSPORT: Low–Favarable

(4)  SURFACE WIND SPEED: Moderate - Favorable

(5)  SURFACE WIND DIRECTION : South westerly - Unfavarable

(6)  RELATIVE HUMIDITY: High –Negligible Effect.

(7)  MIXING LAYER HEIGHT:Moderate- Favorable.

(8)  LOCAL TEMPERATURE:Moderate– Negligible Effect.

(9)  FIRE COUNTS:Few –Marginal Effect









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Air Quality Across SAFAR Cities: AQ-Index

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GOOD

SEVERE

 

Pune

 

Mumbai

 

Ahmedabad

 

Delhi



Delhi

Pune

Mumbai

Ahmedabad


Unusually Sensitive: 


Consider reducing prolonged or heavy exertion.


Take it easy if symptoms such as coughing or shortness of breath occurs.


HEALTHY PEOPLE:  


Its a reasonable to be active outside


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Air Quality Forecast (1-3 days): Levels in µgm-3

Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 3 daysAdvisory
PM10 (µgm-3) 103 Moderate
134 Moderate
165 Moderate
PM2.5 (µgm-3) 32 Satisfactory
41 Satisfactory
51 Satisfactory
Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 3 daysAdvisory
PM10 (µgm-3) 43 Good
40 Good
38 Good
PM2.5 (µgm-3) 28 Good
25 Good
23 Good
Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 3 daysAdvisory
PM10 (µgm-3) 63 Satisfactory
61 Satisfactory
70 Satisfactory
PM2.5 (µgm-3) 35 Satisfactory
33 Satisfactory
39 Satisfactory
Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 3 daysAdvisory
PM10 (µgm-3) 65 Satisfactory
61 Satisfactory
63 Satisfactory
PM2.5 (µgm-3) 35 Satisfactory
31 Satisfactory
33 Satisfactory

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