Air quality in Hanoi

Air quality index (AQI) and PM2.5 air pollution in Hanoi

LAST UPDATE (local time)

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Weather

What is the current weather in Hanoi?

WeatherBroken clouds
Temperature80.6°C
Humidity83%
Wind5.8 mp/h
Pressure1003 mb

live aqi city ranking

Real-time Vietnam city ranking

#cityUS AQI
1Chuc Son

154

2Luong Son

152

3Van Dien

152

4Thanh Xuan

149

5Ha Dong

142

6Lien Quan

125

7Quoc Oai

89

8Ho Chi Minh City

88

9Trau Quy

84

10Soc Son

82

(local time)

SEE WORLD AQI RANKING

live Hanoi aqi ranking

Real-time Hanoi air quality ranking

#stationUS AQI
1Minh Khai - Bắc Từ Liêm

122

2Hà Nội: Trụ sở Công an P .Hàng Mã (KK)

104

3Hà Nội: Tòa nhà quản lý Hồ Thành Công (KK)

97

4Tay Ho Street

92

5Phạm Văn Đồng

89

6To Ngoc Van

86

7Thành Công

85

8Hà Nội: Trụ sở Công an quận Hoàn Kiếm (KK)

79

9Hà Nội: Chi cục BVMT (KK)

75

10GreenID

74

(local time)

SEE WORLD AQI RANKING

US AQI

81

live AQI index
Moderate

Overview

What is the current air quality in Hanoi?

Air pollution levelAir quality indexMain pollutant
Moderate81 US AQIPM2.5
PollutantsConcentration
PM2.5
26.2 µg/m³
pm10
100.4 µg/m³
o3
0.5 µg/m³
no2
26.6 µg/m³
so2
2.8 µg/m³
co
4188.9 µg/m³

Health Recommendations

How to protect from air pollution in Hanoi?

Close your windows to avoid dirty outdoor air
Sensitive groups should reduce outdoor exercise

Forecast

Hanoi air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Sunday, Aug 2

Moderate57 US AQI

Monday, Aug 3

Moderate80 US AQI

Tuesday, Aug 4

Moderate77 US AQI

Today

Unhealthy for Sensitive Groups121 US AQI

face icon
weather icon84.2°78.8°

6.7 mp/h

Thursday, Aug 6

Unhealthy for Sensitive Groups116 US AQI

face icon
weather icon86°78.8°

6.7 mp/h

Friday, Aug 7

Unhealthy for Sensitive Groups120 US AQI

face icon
weather icon87.8°78.8°

8.9 mp/h

Saturday, Aug 8

Unhealthy for Sensitive Groups124 US AQI

face icon
weather icon93.2°78.8°

6.7 mp/h

Sunday, Aug 9

Unhealthy for Sensitive Groups108 US AQI

face icon
weather icon89.6°78.8°

4.5 mp/h

Monday, Aug 10

Unhealthy for Sensitive Groups143 US AQI

face icon
weather icon93.2°80.6°

2.2 mp/h

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Historical

Historic air quality graph for Hanoi

How to best protect from air pollution?

Reduce your air pollution exposure in Hanoi

AIR QUALITY ANALYSIS AND STATISTICS FOR Hanoi

Where does IQAir AirVisual get its data from?

IQAir AirVisual reports from governmental and non-governmental air monitoring stations. For each station, it always lists the data source, contributor and location. IQAir AirVisual does this to be fully transparent and to give its users a choice as to which data they want to follow.

It mostly reports from ground-based stations, which are the most accurate. However, if a particular location doesn’t have any stations and people ask IQAir AirVisual for air quality information, it can use data modeling from satellite imagery and weather patterns to estimate air quality. In these cases, it writes next to the AQI number that this data is an estimated figure.

How does IQAir AirVisual calculate the Air Quality Index value?

Each pollutant has both a concentration and Air Quality Index (AQI) value. IQAir AirVisual takes the concentrations of pollutants reported by a station and calculates each pollutant’s AQI value. The pollutant with the highest AQI level, or risk to health, is deemed the "main pollutant." The main pollutant's AQI is the overall Index value.


A city's AQI is an average of all the stations’ AQIs in that city - IQAir AirVisual takes the median value, not the mean, to avoid one or two stations that may be reporting significantly higher values affecting the city’s overall AQI.

It uses the United States’ AQI, which is one of the world’s most stringent.

How often is the AQI updated?

IQAir AirVisual updates it in real-time, not on a 24-hour rolling average. This is so people have up-to-date information and can act to protect themselves when there are sudden pollution spikes.

How accurate is IQAir AirVisual’s data?

The data IQAir AirVisual reports – both from governmental and non-governmental monitors – is constantly monitored by its Artificial Intelligent (AI) system, which flags what it considers inappropriate data. Should the data still be in doubt, it offers users the possibility to report a potential problem with a station. This ensures double data validation: from the system and from the community. IQAir AirVisual believes that it is the air quality data provider that has done more than any other to ensure data accuracy and reliability.

More details on IQAir AirVisual’s validation and calibration processes are available here.

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