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)



SHORT RANGE FORECAST: (1) Delhi: Overall AQI today indicates ‘moderate’ air quality. Fine particles (size < 2.5 micrometer) contribute ~ 35% to PM10 indicating dominance of coarse or dust particles. For the next 3 days, surface wind speed (14 to 16 km/h) and temperature (Max 30-32 deg C; Min 17-19 deg C) are likely to slightly worsen air quality. Mixing layer height is likely to be ~ 3 km that causes moderate ventilation of pollutants. Moderate surface winds are likely to maintain dispersion and air quality. Over all air quality is likely to be within ‘moderate’ for the next 3 days due to dispersion by surface wind speed. (2) Mumbai, Pune and Ahmedabad: AQI of Pune indicates ‘satisfactory’ air quality today and likely to be within ‘satisfactory’ for next two days. AQI of Mumbai indicates ‘satisfactory’ and likely to be within ‘satisfactory’ for next 2 days. AQI of Ahmedabad today indicates ‘lower end of moderate’ air quality and likely to be within ‘moderate’ for next two days.




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MAP
TRENDING SUMMARY
(27/03/2023)

SHORT RANGE FORECAST:

(1) Delhi: Overall AQI today indicates ‘moderate’ air quality. Fine particles (size < 2.5 micrometer) contribute ~ 35% to PM10 indicating dominance of coarse or dust particles. For the next 3 days, surface wind speed (14 to 16 km/h) and temperature (Max 30-32 deg C; Min 17-19 deg C) are likely to slightly worsen air quality. Mixing layer height is likely to be ~ 3 km that causes moderate ventilation of pollutants. Moderate surface winds are likely to maintain dispersion and air quality. Over all air quality is likely to be within ‘moderate’ for the next 3 days due to dispersion by surface wind speed.

 Detailed information:

      Air Quality Observation: The air quality over Delhi remained in Moderate category with AQI 164 on 26.03.2023. Winds were from Northwest direction with wind speed 06-14 kmph on 26.03.2023.

         The air quality is likely to show gradual deterioration but remain in Moderate category on 27.03.2023 to 29.03.2023. The air quality is likely to remain in Moderate category on 30.03.2023.  The outlook for subsequent 6 Days: The air quality is likely to remain in Moderate category.

   The predominant surface wind is likely to be coming from Northwest directions in Delhi with wind speed 10-16 kmph and mainly clear sky on 27.03.2023. The predominant surface wind is likely to be coming from Northwest/North directions in Delhi with wind speed 10-15 kmph and partly cloudy sky on 28.03.2023. The predominant surface wind is likely to be coming from Northwest direction in Delhi with wind speed 06-14 kmph and partly cloudy sky on 29.03.2023. The predominant surface wind is likely to be coming from Northeast direction in Delhi with wind speed 08-14 kmph, generally cloudy sky and possibility of very light rain/thundershowers towards night on 30.03.2023.

 (2) Mumbai, Pune and Ahmedabad: AQI of Pune indicates ‘satisfactory’ air quality today and likely to be within ‘satisfactory’ for next two days. AQI of Mumbai indicates ‘satisfactory’ and likely to be within ‘satisfactory’ for next 2 days. AQI of Ahmedabad today indicates ‘lower end of moderate’ air quality and likely to be within ‘moderate’ for next two days.

 FACTORS FORECASTED TO INFLUENCE DELHI AIR QUALITY:

RED Line: Most Influencing factor forecasted to deteriorate AQI
(1) MIXING LAYER HEIGHT: MODERATE                 

      IMPACT: MODERATE VERTICAL MIXING

(2) LOCAL WIND SPEED: MODERATE

      IMPACT: MODERATE DISPERSION OF POLLUTANTS

(3) VENTILATION FACTOR: MODERATE

      IMPACT: MODERATE VERTICAL DISPERSION

(4) STUBBLE BURNING IMPACT: NEGLIGIBLE

(5) EXTERNAL DUST INTRUSION: NEGLIGIBLE       

      IMPACT: NEGLIGIBLE









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SAFAR AQ Forecast Reports -DIWALI 2021



DELHI

PUNE

MUMBAI

AHMEDABAD

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Air Quality Across SAFAR Cities: AQ-Index

1

50

100

200

300

400

500+

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

PM10 (µgm-3) : 144
PM2.5 (µgm-3) : 53


Enjoy The Day




PM10 (µgm-3): 73
PM2.5 (µgm-3) : 45


Enjoy The Day




PM10 (µgm-3) : 80
PM2.5 (µgm-3) : 48


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

PM10 (µgm-3) : 123
PM2.5 (µgm-3) : 66

Air Quality Forecast (1-3 days): AQI

Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 2 Days Advisory
PM10 130 Moderate
149 Moderate
168 Moderate
PM2.5 88 Satisfactory
111 Moderate
149 Moderate
Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 2 Days Advisory
PM10 73 Satisfactory
82 Satisfactory
77 Satisfactory
PM2.5 75 Satisfactory
83 Satisfactory
78 Satisfactory
Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 2 Days Advisory
PM10 80 Satisfactory
76 Satisfactory
84 Satisfactory
PM2.5 80 Satisfactory
75 Satisfactory
86 Satisfactory
Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 2 Days Advisory
PM10 116 Moderate
112 Moderate
113 Moderate
PM2.5 118 Moderate
101 Moderate
108 Moderate

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