AirNow by Skymory

Brazil · America/Sao_Paulo

Brasília air quality

60

Moderate

CAMS model-based US AQI estimate

Highest pollutant sub-index: PM2.5

Model values for Oct 02 04:00 -03 · CAMS model estimate, may differ from monitoring stations and street-level conditions

Data may be delayed

AirNow by Skymory is an independent service; it is not affiliated with or endorsed by U.S. EPA or the official AirNow service.

Pollutants now (modeled)

  • PM2.5Fine particles9.3 µg/m³
  • PM10Coarse particles9.5 µg/m³
  • O3Ozone63.9 µg/m³
  • NO2Nitrogen dioxide7.1 µg/m³
  • SO2Sulphur dioxide1.9 µg/m³
  • COCarbon monoxide224.6 µg/m³

Weather in Brasília

See the temperature, rain and wind forecast for Brasília.

Brasília weather forecast on Skymory

Next 24 hours: PM2.5

Modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 8.1 to 16.5. Forecast, not observations.Oct 02 05:00 -03Oct 03 04:00 -03
Modeled PM2.5 forecast (µg/m³) · 8.1–16.5; actual sample times, no interpolated hourly values.

Pollutant forecast

Hourly model samples in local time; no interpolation.

Local timePM2.5 µg/m³PM10 µg/m³O3 µg/m³NO2 µg/m³SO2 µg/m³CO µg/m³
9.79.960.27.62.0229.1
9.49.660.47.62.0228.9
9.59.860.97.92.1237.8
10.010.471.16.51.9245.8
9.910.189.04.21.5242.1
9.09.1103.72.31.2227.2
8.68.7110.31.61.0216.1
8.78.8112.91.41.0208.1
8.18.3105.51.70.8194.2
8.58.7101.61.90.8188.3
8.99.199.82.30.8187.2
9.910.098.73.40.9199.7
12.913.296.56.11.1236.1
15.015.586.311.51.4282.0
16.416.974.216.31.8320.3
16.517.172.215.72.0321.8
16.417.070.315.72.3321.2
16.116.667.015.42.6319.2
15.916.459.116.82.8324.9
15.515.951.217.32.7325.7
14.915.148.915.82.6315.0
13.814.049.313.72.5298.6
12.712.949.611.92.3282.9
11.311.451.89.62.0263.5
Data details: about this air quality estimate

Values are modeled by the Copernicus Atmosphere Monitoring Service (CAMS) global forecast, extracted and converted by Skymory for this city. They are model estimates on a coarse grid, not measurements from monitoring stations, and they do not resolve street-level exposure.

  • Model initialization: 2026-10-01T12:00:00+00:00. Values valid: Oct 02 04:00 -03. Retrieved: 2026-10-02T04:17:54.294974+00:00.
  • Page generated from a snapshot with data state STALE_USABLE; model age 19.9 hours at generation.
  • Nearest valid 0.4° model grid cell, about 21 km from the city point.
  • Gases are converted with matching model-level 137 temperature, humidity, surface pressure (lnsp) and hybrid coefficients; particulate matter is read directly from the surface fields.
  • AQI estimate completeness: COMPLETE (COMPLETE means all six pollutants have a complete model window).

The AQI estimate applies EPA breakpoints (May 2026) to explicit trailing model windows (PM 24 h, CO 8 h, NO2 1 h, SO2 and O3 per EPA rules). It is not a station observation, official daily maximum or NowCast, and the official AQI field remains unavailable.

Averaging windows used

  • CO: 8h window
  • NO2: 1h window
  • O3: 1h, 8h window
  • PM10: 24h window
  • PM2.5: 24h window
  • SO2: 1h, 24h window

Surface compatibility by pollutant

PollutantSurface compatibility
PM2.5DIRECT_SURFACE
PM10DIRECT_SURFACE
O3DERIVABLE_SURFACE
NO2DERIVABLE_SURFACE
SO2DERIVABLE_SURFACE
CODERIVABLE_SURFACE

Source and license

Contains modified Copernicus Atmosphere Monitoring Service information 2026; city extraction and concentration conversion. CAMS global atmospheric composition forecasts (ECMWF/CAMS). CC BY 4.0.

Provider times stay separate from page generation: collecting data or regenerating this page never resets the source time. Data sources and methodology

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