Liberia · Africa/Monrovia
Monrovia air quality
24
Good
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 07:00 GMT · 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 particles9.6 µg/m³
- PM10Coarse particles14.4 µg/m³
- O3Ozone31.7 µg/m³
- NO2Nitrogen dioxide2.2 µg/m³
- SO2Sulphur dioxide0.6 µg/m³
- COCarbon monoxide154.3 µg/m³
Weather in Monrovia
See the temperature, rain and wind forecast for Monrovia.
Monrovia 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 |
|---|---|---|---|---|---|---|
| 9.5 | 14.1 | 33.5 | 1.5 | 0.6 | 157.1 | |
| 8.0 | 13.1 | 41.0 | 0.6 | 0.5 | 126.4 | |
| 8.0 | 13.5 | 43.3 | 0.4 | 0.5 | 118.4 | |
| 7.9 | 13.6 | 43.5 | 0.3 | 0.4 | 115.5 | |
| 8.4 | 14.5 | 43.8 | 0.3 | 0.4 | 112.7 | |
| 8.7 | 15.0 | 44.0 | 0.3 | 0.4 | 110.5 | |
| 9.0 | 15.5 | 44.0 | 0.3 | 0.4 | 108.6 | |
| 9.3 | 15.9 | 44.4 | 0.2 | 0.4 | 106.2 | |
| 9.5 | 16.0 | 44.3 | 0.3 | 0.4 | 104.4 | |
| 9.6 | 16.1 | 44.0 | 0.4 | 0.4 | 103.9 | |
| 9.1 | 14.8 | 43.5 | 0.6 | 0.4 | 106.6 | |
| 9.3 | 14.7 | 43.2 | 1.0 | 0.5 | 115.1 | |
| 8.6 | 12.9 | 42.8 | 1.2 | 0.6 | 124.3 | |
| 8.8 | 13.0 | 43.3 | 1.3 | 0.6 | 128.2 | |
| 9.3 | 13.7 | 43.5 | 1.4 | 0.6 | 133.2 | |
| 10.4 | 15.2 | 42.8 | 1.6 | 0.6 | 139.2 | |
| 10.1 | 14.8 | 42.2 | 1.7 | 0.6 | 137.0 | |
| 9.6 | 14.3 | 42.3 | 1.6 | 0.5 | 131.1 | |
| 9.3 | 14.1 | 42.8 | 1.5 | 0.5 | 127.2 | |
| 9.3 | 14.1 | 43.0 | 1.5 | 0.4 | 125.4 | |
| 9.7 | 14.7 | 42.8 | 1.6 | 0.4 | 126.2 | |
| 10.0 | 15.2 | 42.1 | 1.7 | 0.5 | 128.9 | |
| 10.4 | 15.6 | 41.4 | 1.9 | 0.5 | 133.9 | |
| 11.1 | 16.1 | 40.6 | 2.0 | 0.6 | 148.4 |
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 07:00 GMT. Retrieved: 2026-10-02T04:31:38.154367+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 11 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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