Is the air quality good in Beijing?
As of February 21, 2026, at 3:30 AM PT, Beijing, China, is experiencing very poor air quality due to regional dust and emissions. The AQI is over 500, classified as "hazardous" with PM10 concentrations dominating.
These conditions may increase the risk of respiratory issues, worsen heart problems, and impair lung function, particularly for children, the elderly, and people with underlying health conditions.
To stay safe during this temporary spike, limit outdoor time, seal windows, wear masks if venturing out, and use air purifiers indoors.
Air quality conditions can change rapidly throughout the day. For a complete, real-time view of current pollution levels, see Beijing's air quality map.
While the air quality conditions today are unusually poor, it is important to keep in mind that the average PM2.5 concentration in 2024 for Beijing was 30.9 µg/m³, corresponding to an AQI of 92 (“moderate”), which was already 6.2 times the WHO annual guideline of 5 µg/m³.
By comparison, today’s AQI is more than seven times higher than the 2024 annual average AQI level, indicating pollution concentrations that are exponentially more hazardous and far beyond both national standards and international health guidelines.
Beijing, China, ranked as the most polluted major city globally, as of February 21, 2026, at 3:30 AM (PT). Source: IQAir.
When will the air quality improve in Beijing?
The hourly forecast suggests that air quality is expected to improve significantly by the following morning, with the AQI projected to fall closer to 200 as winds strengthen and disperse accumulated pollutants.
Hourly air quality forecast for Beijing, China, as of February 21, 2026, at 3:30 AM (PT). Source: IQAir.
Air quality map of Beijing, China as of February 21, 2026, at 3:30 AM (PT). Source: IQAir.
What is causing poor air quality in Beijing?
Beijing’s poor air quality arises from several interlinked factors. Industrial emissions and coal combustion remain a significant source of particulate matter, particularly during heating seasons (1).
Vehicle exhaust adds another layer of pollutants, with older, higher-emitting vehicles contributing heavily to nitrogen oxides and PM2.5. Seasonal dust storms from the Gobi Desert and surrounding arid regions also transport large amounts of particles into the city, compounding existing pollution (2).
Finally, weather conditions such as thermal inversions, humidity, and stagnant air trap pollutants close to the ground, intensifying smog episodes.
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How can I protect myself from poor air quality?
- Get a free air quality app for real-time air quality alerts and forecasts.
- Shut doors and windows and set the HVAC to recirculate mode.
- Contribute to your community’s outdoor air quality data.
- Stay indoors when air quality is poor; if you do need to go outdoors, wear a KN95/FFP2 mask.
- Run a high-performance air purifier to filter particles, gases, and other pollutants.
