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: The AQI today indicates ‘very poor’ air quality. For the next three days, winds are likely to be calm reducing ventilation leading to deterioration of air quality but within the same category. From 6th Dec onwards winds are expected to increase dispersing pollutants but AQI likely to remain in ‘very poor’ category. Partly cloudy sky and low mixing layer height are preventing efficient dispersion of pollutants.         (2) Mumbai, Pune and Ahmedabad: AQI of Pune indicates satisfactory air quality today and likely to be ‘satisfactory’ for the next 2 days. AQI of Mumbai indicates moderate category and likely to be satisfactory for the next 2 days. AQI of Ahmedabad indicates air quality is of satisfactory category, and likely to remain so for the next 2 days.      




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RELATIVE SOURCE SHARE (%) IN PM2.5 POLLUTION IN DELHI (In Two Contrasting Scenarios)
DURING HARVESTING PERIOD (Local v/s Stubble v/s External)

PLOT

SAFAR Air Pollution Hotspots - Delhi (02-12-2021)
MAP
TRENDING SUMMARY
(02-12-2021)
SHORT RANGE FORECAST:

(1) Delhi: The AQI today indicates ‘very poor’ air quality. For the next three days, winds are likely to be calm reducing ventilation leading to deterioration of air quality but within the same category. From 6th Dec onwards winds are expected to increase dispersing pollutants but AQI likely to remain in ‘very poor’ category. Partly cloudy sky and low mixing layer height are preventing efficient dispersion of pollutants.

(2) Mumbai, Pune and Ahmedabad: AQI of Pune indicates satisfactory air quality today and likely to be ‘satisfactory’ for the next 2 days. AQI of Mumbai indicates moderate category and likely to be satisfactory for the next 2 days. AQI of Ahmedabad indicates air quality is of satisfactory category, and likely to remain so for the next 2 days.

  FACTORS FORECASTED TO INFLUENCE DELHI AIR QUALITY: :

  RED Line: Most Influencing factor forecasted to deteriorate AQI

(1)  MIXING LAYER HEIGHT: LOW

  IMPACT:LOW VERTICAL MIXING

(2)   LOCAL WIND SPEED:CALM

  IMPACT:MORE ACCUMULATION OF POLLUTANTS

(3)  VENTILATION FACTOR:LOW

  IMPACT:LOW DISPERSION

(4)  STUBBLE BURNING IMPACT: NEGLIGIBLE

(5)  EXTERNAL DUST INTRUSION: VERY LOW

  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

 

Ahmedabad

 

Mumbai

 

Delhi



Delhi

Pune

Mumbai

Ahmedabad


Sensitive Groups:  


Avoid all Physical activity outdoor and move activities indoors. If asthematics, keep relief medicine handy.


EVERYONE:  


Stop outdoor activity at early morning and after sunset times.


Avoid prolonged or heavy exertion.


Go for a short walk instead of a jog and take more breaks.


Stop any activity level if you experience any unusual coughing, chest discomfort, wheezing, breathing difficulty, or fatigue.


If the room has windows, close them.


If the air conditioner provides a fresh air intake option, keep that closed.

Avoid burning of wood, candles or incense.


Keep the room clean – dont vacuum. Do wet mopping to reduce dust.


Masks known as N-95 or P-100 respirators may only help if you go out.


Enjoy The Day





Enjoy The Day





Enjoy The Day




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

Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 3 daysAdvisory
PM10 (µgm-3) 403 Very Poor
323 Poor
423 Very Poor
PM2.5 (µgm-3) 231 Very Poor
185 Very Poor
243 Very Poor
Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 3 daysAdvisory
PM10 (µgm-3) 63 Satisfactory
70 Satisfactory
77 Satisfactory
PM2.5 (µgm-3) 40 Satisfactory
45 Satisfactory
49 Satisfactory
Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 3 daysAdvisory
PM10 (µgm-3) 74 Satisfactory
70 Satisfactory
83 Satisfactory
PM2.5 (µgm-3) 47 Satisfactory
42 Satisfactory
52 Satisfactory
Pollutants TodayAdvisoryTomorrow's ForecastAdvisoryAfter 3 daysAdvisory
PM10 (µgm-3) 67 Satisfactory
63 Satisfactory
65 Satisfactory
PM2.5 (µgm-3) 37 Satisfactory
33 Satisfactory
35 Satisfactory

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