Is the air quality good in Beijing?
As of March 26, 2026, at 2:00 AM PT, Beijing, China, is experiencing very poor air quality due to regional dust and emissions. The AQI is over 200, classified as "very unhealthy" 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.
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 2025 for Beijing was 26.8 µg/m³, corresponding to an AQI of 81 (“moderate”), which was already 5.36 times the WHO annual guideline of 5 µg/m³.
By comparison, today’s AQI is 2.65 times higher than the 2025 annual average AQI level, indicating pollution concentrations that are far beyond both national standards and international health guidelines.
Beijing, China, ranked as the most polluted major city globally, as of March 26, 2026, at 2:00 AM (PT). Source: IQAir.
Air quality map of Beijing, China as of March 26, 2026, at 2:00 AM (PT). Source: IQAir.
When will the air quality improve in Beijing?
Hourly forecasts suggest that air quality is expected to improve significantly over the next several hours, with AQI projected to fall below 140 by midnight.
Hourly air quality forecast for Beijing, China, as of March 26, 2026, at 2:00 AM (PT). Source: IQAir.
Daily data show that air quality in Beijing has remained between “unhealthy-for-sensitive-groups” and “unhealthy” for most of the past month, but over the last two days it has spiked into the “very unhealthy” range.
Daily air quality trends in Beijing, China, over the past 30 days. Source: IQAir.
What is causing poor air quality in Beijing?
Beijing’s poor air quality arises from several interlinked factors. The main contributors are heavy vehicle traffic, industrial activity, and construction dust in the capital and surrounding provinces.
Even though the official coal-heating season has ended, residual emissions from power plants and factories in the Beijing-Tianjin-Hebei region still affect the city. In early spring, frequent dust storms originating from the Gobi Desert and Inner Mongolia Plateau bring significant PM10 and PM2.5 spikes, worsening air quality for days at a time (1).
A 2024 study published in Science of the Total Environment found that transboundary dust and regional industrial pollution together account for up to 40–60% of Beijing’s spring PM2.5 during high-pollution episodes (2).
While long-term improvements have been made through stricter emission policies, these natural and man-made factors continue to cause recurring poor air quality episodes each spring.
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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.
