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Air quality · China

Air quality in Beijing today

The air in Beijing (China) now and over the next 48 hours: the US AQI and the European AQI, fine particles (PM2.5, PM10), ozone and nitrogen dioxide, compared with the WHO 2021 guidelines, with what it means for outdoor sport, children, older people and open windows.

AQI right now

US AQI238Very unhealthy
European AQI100very poor
PM2.5139µg/m³
PM10152µg/m³
Ozone (O₃)1µg/m³
Nitrogen dioxide (NO₂)55µg/m³

Very unhealthy. Main pollutant: PM2.5, 6.5× the WHO guideline.

What to do today

  • Outdoor sport No hard exercise outdoors; train indoors.
  • Children, older people, asthma Stay indoors as much as possible; an FFP2/N95 mask if you must go out.
  • Windows Keep closed; run a HEPA purifier.

AQI in Beijing hour by hour, next 48 hours

  • Good
  • Moderate
  • Unhealthy for sensitive groups
  • Unhealthy
  • Very unhealthy
  • Hazardous

Cleanest hour in the next 24 h: Mon 04:00 (AQI 177). Worst hour: Sun 08:00 (AQI 238).

US AQI per hour, local time. Bars coloured by category.

Compared with the WHO 2021 guidelines

PollutantNext 24 hWHO guidelineRatio
PM2.597 µg/m³15 µg/m³6.5×
PM10109 µg/m³45 µg/m³2.4×
Nitrogen dioxide (NO₂)57 µg/m³25 µg/m³2.3×
Ozone (O₃)25 µg/m³100 µg/m³within

PM2.5, PM10 and NO₂: 24-hour mean of the forecast against the 24-hour guideline; ozone: highest 8-hour mean against the 8-hour guideline.

Forecast for Sun 08:00 local time · updated 2026-10-25 00:41 UTC

Air quality map around Beijing

Live PM2.5 field (NOAA GEFS-Aerosols): a different model, so it can disagree with the numbers above by a few units.

Open the air map centred on Beijing

More about Beijing

Beijing: all live layers · UV index in Beijing today

Bad air alert for Beijing

Air quality alerts are part of LayEarth Pro: one push the evening before the forecast US AQI in your city goes above your level, so you can move a run, a school trip or an open window in time. 7-day free trial, then 9 USD a month.

Alert me aboveUS AQI

Air alert for Beijing

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Questions

What is the AQI in Beijing right now?
US AQI 238 (Very unhealthy), European AQI 100; PM2.5 139 µg/m³ (Sun 08:00).
Is it safe to exercise outdoors in Beijing today?
No hard exercise outdoors; train indoors.
What is the main pollutant in Beijing?
PM2.5, 6.5× the WHO guideline.
Where do the numbers come from?
The CAMS global air-quality forecast of the Copernicus Atmosphere Monitoring Service, read through Open-Meteo: a model on a ~40 km grid, not a monitoring station. Where a nearby monitor disagrees, the monitor is right.

Nearby cities

Tianjin · Jinan · Dalian · Qingdao · Zhengzhou · Shenyang

All cities

How it is computed

Hourly CAMS forecast (Copernicus) for the coordinates of Beijing via Open-Meteo; US AQI per the US EPA breakpoints, European AQI per the EEA bands, WHO 2021 air-quality guidelines. The page is rebuilt every 3 hours. Live map.