AirNow by Skymory

Colombia · America/Bogota

Cali air quality

18

Good

CAMS model-based US AQI estimate

Highest pollutant sub-index: PM2.5

Model values for Oct 02 02:00 -05 · 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 particles1.6 µg/m³
  • PM10Coarse particles1.7 µg/m³
  • O3Ozone23.8 µg/m³
  • NO2Nitrogen dioxide5.7 µg/m³
  • SO2Sulphur dioxide0.8 µg/m³
  • COCarbon monoxide187.7 µg/m³

Next 24 hours: PM2.5

Modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 0.9 to 7.4. Forecast, not observations.Oct 02 03:00 -05Oct 03 02:00 -05
Modeled PM2.5 forecast (µg/m³) · 0.9–7.4; 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
1.11.226.44.30.9163.3
0.90.926.83.91.0153.3
1.01.026.34.01.1151.6
1.11.125.04.51.2155.6
1.61.723.06.41.4179.7
2.42.418.89.01.4227.8
2.42.419.18.61.5235.5
1.71.822.76.81.6202.1
1.51.523.55.91.5190.1
1.51.524.55.61.3187.6
1.81.826.64.81.2190.3
1.61.630.73.81.1182.7
1.41.436.72.71.2167.7
1.91.936.73.31.2169.4
2.02.033.35.61.2188.0
2.82.925.410.41.4238.2
4.24.318.114.61.8289.0
5.45.513.515.82.3315.7
6.26.39.417.52.8343.7
7.47.68.817.93.3364.2
7.37.48.017.23.0370.1
5.05.08.116.32.6352.8
4.14.29.215.22.6330.5
3.73.89.114.42.6322.1
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 02:00 -05. Retrieved: 2026-10-02T04:25:26.222474+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 23 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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