AirNow city forecasts

Seoul Modeled Air Quality — CAMS Forecast

South Korea · Asia/Seoul

Data state: FRESH; source age at generation: 15.3 hours.

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CAMS modeled concentrations

PollutantConcentrationSurface compatibility
CO267.0 µg/m³DERIVABLE_SURFACE
NO239.5 µg/m³DERIVABLE_SURFACE
O323.3 µg/m³DERIVABLE_SURFACE
PM1029.6 µg/m³DIRECT_SURFACE
PM2.518.2 µg/m³DIRECT_SURFACE
SO211.4 µg/m³DERIVABLE_SURFACE

Model initialization: . Valid: . Retrieved: 2026-10-01T12:45:09.519874+00:00.

Nearest valid 0.4° model grid cell; gases use matching model-level 137 temperature, humidity, lnsp and hybrid coefficients. This global model does not resolve street-level exposure.

CAMS model-based US AQI estimate

58 COMPLETE

Window ending 2026-10-01T15:00:00+00:00; window model run 2026-09-30T12:00:00+00:00. Contributors: co, no2, o3, pm10, pm2_5, so2.

Experimental trailing model estimate using EPA May 2026 breakpoints. Not a station observation, official daily maximum, or NowCast. Partial estimates do not imply six-pollutant completeness.

CAMS modeled PM2.5 forecast (µg/m³)Actual model samples spaced by their valid times. Range 3.1 to 18.2. Forecast, not observations.2026-10-01T16:00:00+00:002026-10-02T15:00:00+00:00
CAMS modeled PM2.5 forecast (µg/m³) · 3.1–18.2; actual sample times, no interpolated hourly values.

Modeled concentration forecast

Forecast table model initialization 2026-10-01T00:00:00+00:00. Actual hourly model samples; no interpolation.

Local timePM2.5 µg/m³PM10 µg/m³O3 µg/m³NO2 µg/m³SO2 µg/m³CO µg/m³
Oct 02 01:00 KST18.2 29.1 23.2 38.0 11.4 267.0
Oct 02 02:00 KST17.3 27.2 27.3 32.1 11.4 260.5
Oct 02 03:00 KST15.8 24.1 31.1 26.4 11.3 255.6
Oct 02 04:00 KST13.9 20.1 33.0 22.5 11.0 251.5
Oct 02 05:00 KST12.1 16.1 33.7 20.8 10.6 245.0
Oct 02 06:00 KST11.1 13.6 32.6 22.0 10.4 239.4
Oct 02 07:00 KST11.7 13.5 23.8 31.3 12.1 258.5
Oct 02 08:00 KST11.6 12.8 23.2 30.2 13.0 283.6
Oct 02 09:00 KST6.4 8.0 44.2 16.9 9.7 224.7
Oct 02 10:00 KST4.0 5.4 55.4 10.7 7.3 195.3
Oct 02 11:00 KST3.3 4.3 62.7 8.0 6.4 180.7
Oct 02 12:00 KST3.1 3.9 68.9 6.8 6.0 173.7
Oct 02 13:00 KST3.3 4.0 73.8 6.6 5.7 171.4
Oct 02 14:00 KST3.6 4.3 77.0 6.9 5.7 171.8
Oct 02 15:00 KST3.8 4.4 78.9 7.3 5.6 171.8
Oct 02 16:00 KST4.0 4.6 78.1 8.8 5.7 173.2
Oct 02 17:00 KST4.3 4.8 72.7 13.0 6.0 179.4
Oct 02 18:00 KST5.6 6.0 54.1 27.0 7.5 204.3
Oct 02 19:00 KST8.3 8.7 26.4 48.8 10.5 246.6
Oct 02 20:00 KST9.3 9.7 20.7 52.5 12.5 256.3
Oct 02 21:00 KST9.5 9.8 24.3 47.0 13.1 248.5
Oct 02 22:00 KST9.7 10.0 26.1 43.0 13.5 244.6
Oct 02 23:00 KST10.4 10.8 22.9 43.9 13.7 249.8
Oct 03 00:00 KST11.6 12.0 18.5 45.7 13.2 255.6

Source and license

Contains modified Copernicus Atmosphere Monitoring Service information 2026; city extraction and concentration conversion. CC BY 4.0.

Weather and air quality preserve independent provider timestamps.