AirNow by Skymory

Portugal · Europe/Lisbon

Lisbon air quality

44

Good

CAMS model-based US AQI estimate

Highest pollutant sub-index: PM2.5

Model values for Oct 02 08:00 WEST · 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 particles10.1 µg/m³
  • PM10Coarse particles12.1 µg/m³
  • O3Ozone29.7 µg/m³
  • NO2Nitrogen dioxide17.4 µg/m³
  • SO2Sulphur dioxide2.8 µg/m³
  • COCarbon monoxide204.1 µg/m³

Next 24 hours: PM2.5

Modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 10.7 to 14.8. Forecast, not observations.Oct 02 09:00 WESTOct 03 08:00 WEST
Modeled PM2.5 forecast (µg/m³) · 10.7–14.8; 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
10.712.733.518.23.4209.2
11.714.242.617.44.0208.4
11.714.659.714.44.4198.6
12.216.281.110.04.4183.9
13.119.198.95.93.7169.8
14.221.2110.14.73.4166.3
14.722.0111.14.83.4165.6
14.821.3105.36.43.6170.5
14.219.793.48.43.7177.0
13.718.379.111.03.7184.8
13.617.663.315.43.5193.7
13.517.755.016.53.4197.3
13.618.051.516.03.3198.6
13.818.148.115.83.2200.7
14.018.044.516.13.1203.5
14.117.841.316.63.1205.5
13.917.538.716.63.1205.6
13.016.236.915.23.0203.7
12.515.534.314.53.0203.0
12.215.030.214.52.9203.1
11.914.725.215.32.8203.6
11.814.520.116.42.7203.5
12.215.016.317.82.6202.4
14.217.416.418.72.7204.9
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 08:00 WEST. Retrieved: 2026-10-02T04:46:30.054881+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 9 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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