To support Delhi’s air pollution management, we forecast ambient concentrations for all the criteria pollutants for the next 72-hours. The modeling domain covering Delhi and its satellite cities, extends 80 km in North to South and 80 km West to East, with a spatial resolution of 0.01 degrees (~1 km) and a temporal resolution of 1 hour. The modeled meteorology and concentration data fields are updated everyday at ~7:00 PM IST.
PM2.5
24-hr average Particulate Matter (< 2.5 micro-m)
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PM10
24-hr average Particulate Matter (< 10 micro-m)
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CO
24-hr average Carbon Monoxide
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NO2
24-hr average Nitrogen Dioxide
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Hourly Anime
Animations of hourly concentration maps
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Met Anime
Animations of meteorological parameters
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Modeled Source Contributions to PM2.5
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Comparison plot below is updated once every 6-hours
For more details, visit the Delhi air quality forecasting page. Additional data fields
- summary of monitoring data from local networks as box plots and time series
- Forecasts – animations of hourly wind, temperature, precipitation, and mixing heights (maps)
- Forecasts – daily (24 hour) average concentrations (maps)
- Forecasts – animations of hourly average concentrations (maps)
- Forecasts – hourly time series at the district level
- Forecasts – modeled source contributions to hourly PM2.5 concentrations at the district level
What is Polluting Delhi’s Air?
Air pollution in (urban and rural) India is a growing public concern, and city of Delhi (its capital) is one of the most studied city with a disproportionate share of media attention. Yet, we do not seem to have decisive answers to simple questions like how polluted is the city, what are the main sources, and where to start to control pollution in the city. A review of Delhi’s air quality from 1990 to 2022 from data, sectoral, judicial, and institutional perspectives was published as a journal article in 2023. [main link]
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