Hai Phong air quality today
Live AQI for Hai Phong (Hải Phòng), 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 Quảng Ninh/K11 - Minh Thành, Vietnam · ~25 km away · updated 18:00 26/07/2026 (UTC+7) · Source: WAQI (aqicn.org)
Who this level affects
Most people, including children and older adults.
What to do right now
- Outdoor exercise is a good choice today.
- Open windows to air the house out.
Why Hai Phong's air behaves this way
Hai Phong is northern Vietnam's largest port city and sits right on the coast. A steady sea breeze disperses dust better than in cities further inland, but the city still belongs to the Red River Delta and shares the region's winter weather patterns.
When it gets worse, and why
In winter the same cold spells that cause inversions in Hanoi reach Hai Phong too, usually milder thanks to the sea breeze. Conversely, the still days at the end of winter are when emissions from the port and the surrounding industrial zones show up most clearly.
Main pollution sources in Hai Phong
- Port operations: ships, cranes and bulk cargo handling
- Container and heavy trucks moving in and out of the port around the clock
- Industrial zones and factories ringing the city
- Heavy industry elsewhere in the region, carried in on the prevailing wind
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
Is the air cleaner in Hai Phong because it is by the sea?
The sea breeze does help disperse dust, so during the same weather spell Hai Phong is usually easier to breathe in than cities deeper inland. That advantage does not remove the local sources at the port and in industry — on still days readings can still climb.
What should I watch for living near the port?
Container routes are where dust and diesel exhaust concentrate most. If your home or a school sits along one, it helps to keep road-facing windows shut during peak hours and to filter the air in the bedroom.
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.
Get an alert before the air turns bad
Aiora watches your location and notifies you when the level crosses the threshold you set, with advice adjusted to your own health profile.
Open the appAir quality in other cities
Station data: World Air Quality Index Project (aqicn.org) · OpenAQ · Open-Meteo