AirNow by Skymory

South Sudan · Africa/Juba

Juba air quality

43

Good

CAMS model-based US AQI estimate

Highest pollutant sub-index: PM2.5

Model values for Oct 02 09:00 CAT · 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 particles5.0 µg/m³
  • PM10Coarse particles5.3 µg/m³
  • O3Ozone54.4 µg/m³
  • NO2Nitrogen dioxide1.0 µg/m³
  • SO2Sulphur dioxide0.4 µg/m³
  • COCarbon monoxide151.2 µg/m³

Next 24 hours: PM2.5

Modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 5.1 to 13.4. Forecast, not observations.Oct 02 10:00 CATOct 03 09:00 CAT
Modeled PM2.5 forecast (µg/m³) · 5.1–13.4; 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
5.15.962.40.70.3148.2
5.97.566.00.60.3143.2
6.59.068.20.60.3138.5
7.09.969.80.50.3135.0
7.210.471.00.60.3133.1
7.410.872.10.60.3132.4
7.711.273.20.70.3133.3
8.212.073.40.90.4135.2
9.613.563.23.40.5151.0
11.315.154.36.00.6172.0
13.016.749.67.80.8191.4
12.616.250.26.60.8185.0
13.116.647.06.90.8190.8
13.416.844.47.20.9193.8
13.316.641.77.30.8192.4
12.515.739.86.50.8183.7
11.414.336.95.70.6173.3
10.713.334.95.20.6166.6
10.412.934.55.10.6162.7
10.713.232.36.30.6165.8
11.814.330.78.00.7178.3
11.614.147.24.30.7175.8
10.413.464.21.70.6159.2
10.414.373.61.00.5150.3
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 09:00 CAT. Retrieved: 2026-10-02T04:26:58.164779+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 6 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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