Gabon · Africa/Libreville
Libreville air quality
58
Moderate
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 08:00 WAT · 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 particles12.0 µg/m³
- PM10Coarse particles15.8 µg/m³
- O3Ozone35.6 µg/m³
- NO2Nitrogen dioxide4.5 µg/m³
- SO2Sulphur dioxide2.9 µg/m³
- COCarbon monoxide180.8 µg/m³
Weather in Libreville
See the temperature, rain and wind forecast for Libreville.
Libreville weather forecast on SkymoryNext 24 hours: PM2.5
Pollutant forecast
Hourly model samples in local time; no interpolation.
| Local time | PM2.5 µg/m³ | PM10 µg/m³ | O3 µg/m³ | NO2 µg/m³ | SO2 µg/m³ | CO µg/m³ |
|---|---|---|---|---|---|---|
| 11.1 | 14.9 | 41.9 | 3.6 | 2.5 | 168.1 | |
| 9.4 | 13.0 | 46.9 | 2.1 | 1.7 | 149.3 | |
| 9.4 | 13.2 | 50.0 | 1.7 | 1.6 | 146.6 | |
| 9.0 | 12.5 | 51.4 | 1.7 | 1.7 | 149.0 | |
| 8.5 | 11.8 | 51.3 | 1.7 | 1.5 | 147.5 | |
| 7.4 | 10.1 | 51.8 | 1.6 | 1.4 | 149.3 | |
| 7.1 | 9.3 | 51.5 | 1.9 | 1.4 | 155.9 | |
| 6.5 | 8.4 | 47.1 | 2.5 | 1.3 | 157.1 | |
| 6.4 | 8.2 | 43.3 | 3.3 | 1.5 | 161.1 | |
| 6.5 | 8.1 | 40.8 | 4.4 | 1.7 | 168.3 | |
| 7.3 | 9.0 | 38.0 | 5.0 | 2.0 | 177.6 | |
| 8.7 | 10.8 | 35.7 | 5.1 | 2.2 | 184.3 | |
| 9.9 | 12.0 | 32.4 | 5.2 | 2.4 | 194.5 | |
| 10.8 | 13.1 | 30.5 | 5.2 | 2.5 | 200.1 | |
| 11.0 | 13.5 | 29.4 | 5.0 | 2.4 | 197.5 | |
| 10.5 | 13.2 | 29.5 | 4.5 | 2.1 | 185.4 | |
| 9.8 | 12.5 | 28.5 | 4.0 | 1.9 | 175.6 | |
| 9.4 | 12.0 | 28.3 | 3.4 | 1.8 | 167.7 | |
| 9.0 | 11.6 | 27.5 | 3.2 | 1.7 | 163.0 | |
| 8.7 | 11.2 | 28.2 | 3.0 | 1.7 | 157.5 | |
| 8.1 | 10.6 | 29.7 | 2.7 | 1.6 | 150.4 | |
| 7.8 | 10.3 | 30.5 | 2.7 | 1.6 | 148.7 | |
| 8.5 | 10.8 | 29.0 | 3.3 | 1.9 | 160.2 | |
| 8.1 | 10.3 | 31.4 | 3.4 | 2.1 | 160.1 |
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 08:00 WAT. Retrieved: 2026-10-02T05:08:50.235731+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 16 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
| Pollutant | Surface compatibility |
|---|---|
| PM2.5 | DIRECT_SURFACE |
| PM10 | DIRECT_SURFACE |
| O3 | DERIVABLE_SURFACE |
| NO2 | DERIVABLE_SURFACE |
| SO2 | DERIVABLE_SURFACE |
| CO | DERIVABLE_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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