South Korea · Asia/Seoul
Changwon 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 particles27.5 µg/m³
- PM10Coarse particles46.6 µg/m³
- O3Ozone77.7 µg/m³
- NO2Nitrogen dioxide9.9 µg/m³
- SO2Sulphur dioxide5.5 µg/m³
- COCarbon monoxide275.1 µg/m³
Weather in Changwon
See the temperature, rain and wind forecast for Changwon.
Changwon 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 |
|---|---|---|---|---|---|---|
| 23.2 | 35.8 | 71.3 | 13.4 | 5.6 | 254.4 | |
| 20.5 | 29.1 | 54.6 | 25.5 | 6.4 | 255.5 | |
| 20.5 | 26.8 | 19.6 | 54.7 | 8.7 | 302.3 | |
| 20.6 | 26.1 | 12.7 | 60.6 | 11.0 | 325.5 | |
| 20.8 | 26.0 | 12.5 | 60.6 | 13.6 | 343.2 | |
| 20.9 | 25.8 | 13.6 | 59.4 | 15.5 | 354.2 | |
| 21.1 | 25.5 | 13.3 | 59.1 | 17.3 | 366.2 | |
| 21.9 | 25.7 | 12.9 | 57.8 | 18.0 | 390.7 | |
| 20.8 | 23.8 | 12.4 | 56.8 | 15.2 | 387.6 | |
| 19.5 | 21.9 | 13.5 | 54.6 | 13.4 | 372.3 | |
| 19.2 | 21.3 | 13.3 | 52.2 | 12.7 | 371.6 | |
| 19.1 | 20.9 | 12.9 | 50.1 | 12.3 | 371.7 | |
| 18.9 | 20.4 | 11.1 | 49.9 | 12.1 | 365.8 | |
| 18.3 | 19.6 | 9.1 | 51.1 | 11.7 | 351.8 | |
| 18.0 | 18.9 | 7.6 | 53.4 | 12.0 | 335.4 | |
| 19.6 | 20.4 | 7.7 | 54.5 | 14.7 | 353.4 | |
| 21.7 | 22.4 | 8.5 | 52.4 | 17.0 | 391.7 | |
| 21.9 | 22.4 | 11.5 | 49.8 | 17.8 | 375.1 | |
| 20.3 | 20.9 | 14.2 | 48.7 | 17.8 | 328.3 | |
| 19.0 | 19.5 | 17.5 | 47.8 | 17.8 | 298.1 | |
| 18.4 | 18.9 | 19.2 | 46.0 | 18.0 | 289.3 | |
| 17.2 | 17.7 | 22.6 | 44.9 | 18.2 | 276.4 | |
| 18.1 | 18.7 | 19.1 | 45.9 | 18.7 | 290.5 | |
| 18.7 | 19.3 | 15.2 | 47.9 | 19.1 | 303.5 |
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: 2026-10-31T03:34:56.324415+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 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: 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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