South Korea · Asia/Seoul
Gunsan air quality
AQI estimate unavailable
CAMS model-based US AQI estimate
Complete eligible model windows are not available within the stale policy; pollutant concentrations are shown below.
Model values for Oct 31 15:00 KST · CAMS model estimate, may differ from monitoring stations and street-level conditions
Data may be delayed · Page generated 2026-10-31 15:22 KST
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 particles7.5 µg/m³
- PM10Coarse particles12.6 µg/m³
- O3Ozone80.9 µg/m³
- NO2Nitrogen dioxide8.8 µg/m³
- SO2Sulphur dioxide5.0 µg/m³
- COCarbon monoxide167.9 µg/m³
Weather in Gunsan
See the temperature, rain and wind forecast for Gunsan.
Gunsan 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 |
|---|---|---|---|---|---|---|
| 5.5 | 8.0 | 80.5 | 10.9 | 4.9 | 168.1 | |
| 4.8 | 6.0 | 70.8 | 18.8 | 5.5 | 186.1 | |
| 6.8 | 7.6 | 32.8 | 48.4 | 7.1 | 260.4 | |
| 9.4 | 10.1 | 11.2 | 65.4 | 9.0 | 334.7 | |
| 11.5 | 12.3 | 3.0 | 71.3 | 10.6 | 384.6 | |
| 14.1 | 15.1 | 0.1 | 72.9 | 13.1 | 443.0 | |
| 17.7 | 18.7 | 0.0 | 71.0 | 16.3 | 527.7 | |
| 21.1 | 22.2 | 0.0 | 69.4 | 18.8 | 616.7 | |
| 21.9 | 23.0 | 0.0 | 68.2 | 17.5 | 643.7 | |
| 23.2 | 24.3 | 0.0 | 66.9 | 17.5 | 670.0 | |
| 23.9 | 25.0 | 0.0 | 64.2 | 16.6 | 679.8 | |
| 24.1 | 25.1 | 0.0 | 60.4 | 15.0 | 681.9 | |
| 21.8 | 22.7 | 0.0 | 57.6 | 12.4 | 644.4 | |
| 18.1 | 18.9 | 0.0 | 60.7 | 11.2 | 554.9 | |
| 17.5 | 18.2 | 0.0 | 63.0 | 11.4 | 519.9 | |
| 18.9 | 19.7 | 0.1 | 65.5 | 12.8 | 527.5 | |
| 20.5 | 21.2 | 0.7 | 66.3 | 14.1 | 547.9 | |
| 21.0 | 21.7 | 1.3 | 65.2 | 14.2 | 549.2 | |
| 20.9 | 21.4 | 1.6 | 59.2 | 13.0 | 570.7 | |
| 20.1 | 20.6 | 1.9 | 56.8 | 11.9 | 555.1 | |
| 18.8 | 19.5 | 3.1 | 58.7 | 11.5 | 502.2 | |
| 17.3 | 18.1 | 4.2 | 60.2 | 10.3 | 453.8 | |
| 16.3 | 17.4 | 5.6 | 58.0 | 9.0 | 448.0 | |
| 14.8 | 16.2 | 7.6 | 57.0 | 7.4 | 429.3 |
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: 2026-10-30T12:00:00+00:00. Values valid: Oct 31 15:00 KST. Retrieved: 2026-10-31T03:37:02.653660+00:00.
- Page generated from a snapshot with data state STALE_USABLE; model age 18.4 hours at generation.
- Nearest valid 0.4° model grid cell, about 8 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: UNAVAILABLE (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.
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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