Hanoi Air Pollution: Real-time Air Quality Index (AQI)

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Hanoi AQI: Hanoi Real-time Air Quality Index (AQI).
86
Moderate
Updated on Wed. 10:00
temperature: 27°C
currentpast 2 daysminmax
PM2.5 AQI
86Hanoi, Vietnam PM25 (fine particulate matter) measured by Vietnam Center For Environmental Monitoring Portal (cổng thông tin quan trắc môi trường). Values are converted to the US EPA AQI standard.18108
PM10 AQI
55Hanoi, Vietnam PM10 (respirable particulate matter) measured by Vietnam Center For Environmental Monitoring Portal (cổng thông tin quan trắc môi trường). Values are converted to the US EPA AQI standard.1859
O3 AQI
26Hanoi, Vietnam O3 (ozone) measured by Vietnam Center For Environmental Monitoring Portal (cổng thông tin quan trắc môi trường). Values are converted to the US EPA AQI standard.831
NO2 AQI
7Hanoi, Vietnam NO2 (nitrogen dioxide) measured by Vietnam Center For Environmental Monitoring Portal (cổng thông tin quan trắc môi trường). Values are converted to the US EPA AQI standard.245
SO2 AQI
11Hanoi, Vietnam SO2 (sulfur dioxide) measured by Vietnam Center For Environmental Monitoring Portal (cổng thông tin quan trắc môi trường). Values are converted to the US EPA AQI standard.913
CO AQI
17Hanoi, Vietnam CO (carbon monoxide) measured by Vietnam Center For Environmental Monitoring Portal (cổng thông tin quan trắc môi trường). Values are converted to the US EPA AQI standard.217
Temp.
27Hanoi, Vietnam t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).2538
Pressure
1005Hanoi, Vietnam p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).9971005
Humidity
94Hanoi, Vietnam h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).49100
Wind
3Hanoi, Vietnam w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).16
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Air Quality Forecast
WED 6
32°C
25°C
THU 7
29°C
25°C
FRI 8
32°C
25°C
SAT 9
36°C
26°C
SUN 10
36°C
27°C
MON 11
35°C
27°C
TUE 12
34°C
26°C
PM2.5
Wednesday 6Thursday 7Friday 8Saturday 9Sunday 10Monday 11Tuesday 12
hour
0369121518210369121518210369121518210369121518210369121518210369121518210369121518
Wind Speed (m/s)
1211126543223342122211454133116653111554422014654332345























































Temp.
26°26°26°28°31°31°27°25°26°26°26°28°27°29°26°26°25°25°25°28°31°32°29°28°27°27°27°32°35°36°29°28°28°27°28°32°36°35°29°27°27°27°27°32°35°33°29°28°26°26°27°32°34°32°28°
relative humidity
91939183697094979694917987819494969795827265818787908665524781878693877049558591939391705564778593948867586886
barometric pressure
100210021003100410021000100110041003100310051005100410031005100610051004100610071006100410051007100510051006100610041001100210051003100210041004100210001001100310021002100310031001999100110031003100210041004100210021004
total precipitation
9.42.14.316.133.439.30.40.43.816.30.92.31.20.10.11.10.10.10.65.13.74.62.92.8311.41.40.30.520.60.60.41.64.29.9
UVI:
5


5:33 ~ 18:34
UVI:
8


5:33 ~ 18:33
UVI:
11


5:34 ~ 18:32
UVI:
11


5:34 ~ 18:32
UVI:
10


5:34 ~ 18:31


5:35 ~ 18:31


5:35 ~ 18:30
Forecast plotted using timezone +07:00
Latest forecast updates:
Wind: 15 hours ago [Aug 5, 2025 1:21 PM]
fine particulate matter: 10 hours ago [Aug 5, 2025 6:22 PM]
click to view the detailed forecast

Air Quality Data provided by: the Vietnam Center For Environmental Monitoring Portal (cổng thông tin quan trắc môi trường) (cem.gov.vn)

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This air quality monitoring station real-time data can be programmatically accessed using this API url: (For more information, check the API page:aqicn.org/api/ )

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why not participate to the map with your own air quality station?

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Air quality historical data


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About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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