China · Asia/Shanghai
Xi’an air quality
121
Unhealthy for sensitive groups
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 15:00 CST · 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 particles30.1 µg/m³
- PM10Coarse particles35.8 µg/m³
- O3Ozone55.6 µg/m³
- NO2Nitrogen dioxide34.2 µg/m³
- SO2Sulphur dioxide12.1 µg/m³
- COCarbon monoxide536.5 µg/m³
Weather in Xi’an
See the temperature, rain and wind forecast for Xi’an.
Xi’an 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 |
|---|---|---|---|---|---|---|
| 28.8 | 34.0 | 51.9 | 37.3 | 11.5 | 517.6 | |
| 30.0 | 34.4 | 40.6 | 45.0 | 11.2 | 539.4 | |
| 42.5 | 46.3 | 24.7 | 55.6 | 11.8 | 692.7 | |
| 51.5 | 55.6 | 21.0 | 56.6 | 12.8 | 825.0 | |
| 57.4 | 62.3 | 16.3 | 58.2 | 14.2 | 894.2 | |
| 64.5 | 70.0 | 15.6 | 54.8 | 15.9 | 989.6 | |
| 64.8 | 70.6 | 14.5 | 53.4 | 16.3 | 988.8 | |
| 68.2 | 74.4 | 13.1 | 52.1 | 17.6 | 1040.8 | |
| 67.9 | 74.0 | 13.8 | 49.6 | 17.2 | 1048.3 | |
| 67.2 | 72.9 | 14.3 | 45.5 | 15.6 | 1052.9 | |
| 63.5 | 68.6 | 15.9 | 42.0 | 14.3 | 1016.2 | |
| 58.9 | 63.1 | 16.3 | 39.0 | 12.8 | 968.6 | |
| 53.5 | 57.2 | 16.2 | 37.2 | 11.7 | 906.1 | |
| 48.7 | 52.1 | 16.0 | 36.3 | 11.0 | 841.1 | |
| 47.5 | 50.6 | 15.7 | 34.5 | 10.5 | 825.9 | |
| 50.0 | 53.0 | 15.1 | 34.6 | 11.4 | 838.4 | |
| 51.2 | 54.2 | 17.7 | 33.8 | 12.3 | 855.8 | |
| 44.6 | 47.3 | 23.1 | 33.2 | 10.8 | 680.0 | |
| 45.1 | 47.7 | 25.6 | 31.6 | 9.9 | 629.8 | |
| 47.6 | 50.2 | 29.9 | 30.1 | 8.7 | 592.4 | |
| 49.8 | 52.4 | 35.3 | 31.3 | 8.2 | 586.7 | |
| 51.4 | 54.1 | 41.6 | 32.8 | 7.8 | 583.4 | |
| 48.2 | 50.8 | 49.7 | 32.7 | 7.6 | 564.6 | |
| 42.2 | 44.4 | 61.2 | 30.1 | 7.1 | 523.1 |
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 15:00 CST. Retrieved: 2026-10-02T04:50:48.832493+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 20 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
| 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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