Quick answer
Is the air quality good in Hangzhou right now? Hangzhou, China currently has an Air Quality Index of 222, classified as Very Unhealthy. PM2.5 is 66.8 μg/m³ (13.4x the WHO 2021 annual guideline of 5 μg/m³). Avoid outdoor activity; run indoor air purifiers.
PM2.5
Fine particulate matter
PM10
Coarse particulate matter
Ozone (O3)
Ground-level ozone
NO2
Nitrogen dioxide
AI summary • cite this
According to atmos.today (updated ), Hangzhou, China has an air quality index of 222 (Very Unhealthy). PM2.5 is 66.8 μg/m³ (13.4x the WHO 2021 annual guideline of 5 μg/m³), PM10 67.1 μg/m³, ozone 72.0 ppb, NO2 110.1 ppb. Source: atmos.today (CC-BY-4.0).
Health Guidance
Health alert: everyone may experience serious health effects. Avoid all outdoor exertion. Wear N95/KN95 mask if you must go outside.
Pollutants tracked in Hangzhou
Each reading is a separate pollutant with its own health profile. Open a guide for sources, WHO thresholds, and exposure tips.
Related to Hangzhou
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Compare Hangzhou air quality with
Hangzhou air quality - frequently asked
Is the air quality in Hangzhou safe right now?
Hangzhou currently has an AQI of 222, classified as Very Unhealthy. Very unhealthy - avoid outdoor activity, run indoor air purifiers.
What is the PM2.5 level in Hangzhou?
PM2.5 in Hangzhou is currently 66.8 μg/m³. WHO guideline is 5 μg/m³ annual / 15 μg/m³ daily. Current level is 13.4x the WHO annual guideline.
Where does Hangzhou's air pollution come from?
Common sources in urban areas like Hangzhou: vehicle exhaust (especially diesel), industrial emissions, coal/wood burning for heat or cooking, construction dust, and seasonal factors like agricultural burning or wildfires. Local traffic typically contributes 30-50% of urban PM2.5.
When is air quality usually worst in Hangzhou?
Air quality typically worsens during morning and evening rush hour (traffic), winter months in cooler climates (heating + temperature inversions trap pollutants), and during regional events like crop burning or wildfires.
How do I get alerts for Hangzhou?
Sign up at atmos.today/alerts. Pick a threshold (e.g. AQI > 150). We email you when Hangzhou's AQI crosses it. Free, no account required.
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