Thai Nguyen air quality today
Live AQI for Thai Nguyen (Thái Nguyên), taken from the monitoring station nearest the city centre and refreshed while this page is open. Below: what the level means for your health, why the air here behaves the way it does, and the questions people ask most.
Station Thái nguyên/Đường Hùng Vương - Tp Thái Nguyên, Vietnam · under 1 km away · updated 17:00 26/07/2026 (UTC+7) · Source: WAQI (aqicn.org)
Who this level affects
Sensitive groups: asthma, COPD, heart disease, pregnancy, children, older adults.
What to do right now
- Move hard exercise indoors.
- Wear a well-fitting mask on the street.
- Run an air purifier in the room you sleep in.
Why Thai Nguyen's air behaves this way
Thai Nguyen lies in the northern midlands, in a basin ringed by hills. That bowl-shaped terrain slows the wind and holds air in place longer than open lowland does, so local emissions tend to accumulate rather than disperse quickly.
When it gets worse, and why
In winter, roughly October to March, the inversion affecting all of northern Vietnam compounds with the basin's air-trapping terrain. This is when readings climb most easily and can stay elevated for days, especially during long spells of still air.
Main pollution sources in Thai Nguyen
- Long-established metallurgy and heavy manufacturing in the area
- Mining and mineral haulage across the region
- Traffic on the highways leading up to the northern mountains
- Agricultural residue and biomass burning on the outskirts
What the AQI numbers mean
Aiora uses the US-EPA AQI bands, the same scale the monitoring network reports on. Each band below shows who it affects and what to do at that level.
Who it affects: Most people, including children and older adults.
What to do: Outdoor exercise is a good choice today. Open windows to air the house out.
Who it affects: People with asthma or heart conditions may notice mild symptoms.
What to do: Keep long, hard outdoor sessions shorter. Watch for coughing or tightness and ease off if it appears.
Who it affects: Sensitive groups: asthma, COPD, heart disease, pregnancy, children, older adults.
What to do: Move hard exercise indoors. Wear a well-fitting mask on the street. Run an air purifier in the room you sleep in.
Who it affects: Everyone can feel this; people with asthma or heart disease feel it first.
What to do: Avoid outdoor exercise. Keep windows shut and filter indoor air. Keep reliever medication within reach if you have asthma.
Who it affects: Everyone, with a serious risk for sensitive groups.
What to do: Stay indoors as much as you can. Seal gaps around windows and doors. Seek care if breathing gets hard.
Who it affects: Everyone, at emergency level.
What to do: Stay indoors. Use an air purifier continuously. Get medical help for any breathing difficulty.
Frequently asked questions
Why does terrain matter so much for Thai Nguyen's air?
The surrounding hills reduce wind speed inside the basin. When the wind is weak, emitted dust is not carried away but circulates locally. For the same amount of emission, a city in a basin records a higher reading than a breezy coastal one.
What is different about winter in Thai Nguyen?
Two effects stack: the northern winter inversion and the basin terrain that holds air in. During long still spells, readings can stay in the unhealthy range for several days in a row, so people with respiratory conditions should plan for indoor air filtration rather than waiting for the wind to change.
Where does this data come from?
Readings come from public monitoring stations via the World Air Quality Index Project (aqicn.org), with additional station coverage from OpenAQ and forecasts from Open-Meteo. The number is the station's measurement, not an estimate by Aiora.
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Station data: World Air Quality Index Project (aqicn.org) · OpenAQ · Open-Meteo