AirNow by Skymory

Niger · Africa/Niamey

Niamey air quality

57

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 particles5.2 µg/m³
  • PM10Coarse particles7.0 µg/m³
  • O3Ozone46.0 µg/m³
  • NO2Nitrogen dioxide2.3 µg/m³
  • SO2Sulphur dioxide0.4 µg/m³
  • COCarbon monoxide197.3 µg/m³

Next 24 hours: PM2.5

Modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 3.8 to 13.8. Forecast, not observations.Oct 02 09:00 WATOct 03 08:00 WAT
Modeled PM2.5 forecast (µg/m³) · 3.8–13.8; 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
4.86.856.71.50.5195.0
4.67.461.71.30.6189.3
4.88.465.01.10.6185.6
4.36.969.50.80.6180.2
3.85.473.30.70.5174.9
4.49.275.00.60.5170.6
5.112.276.00.70.5168.5
5.513.577.30.80.6168.5
5.915.677.21.00.6168.9
6.518.274.81.40.7170.5
7.616.858.14.00.7193.3
8.518.050.24.60.7200.8
9.321.145.74.50.6200.5
10.625.641.95.10.7204.7
11.828.537.36.10.7213.1
12.129.632.66.30.7211.6
11.930.429.95.70.6201.2
11.630.627.95.10.5191.3
11.230.226.94.60.4183.3
11.030.626.94.20.4176.0
11.131.727.13.80.4170.5
11.733.126.63.80.4167.6
12.635.226.53.60.4168.7
13.838.833.42.30.4170.7
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: 2026-10-02T04:32:32.042203+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 15 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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