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Research Center for Environmental Monitoring and Modeling Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Hanoi

Last Updated: 03 Jul 2025, 07:25pm (Local Time)

location image
Live AQI
57
Air Quality is
Moderate
pm10 :  25 µg/m³
PM2.5 :  12 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Research Center for Environmental Monitoring and Modeling
partly cloudy

28 °C

Partly cloudy
Humidity
Humidity89 %
Wind Speed
Wind Speed13 km/h
UV Index
UV Index0
Last Updated: 03 Jul 2025, 07:25pm (Local Time)
Map

Research Center for Environmental Monitoring and Modeling

Major Air Pollutants

Research Center for Environmental Monitoring and Modeling

PM2.5's Icon

Particulate Matter(PM2.5)

12µg/m³

PM10's Icon

Particulate Matter(PM10)

25µg/m³

CO's Icon

Carbon Monoxide(CO)

204ppb

SO2's Icon

Sulfur Dioxide(SO2)

7ppb

NO2's Icon

Nitrogen Dioxide(NO2)

16ppb

O3's Icon

Ozone(O3)

11ppb

Trending in Vietnam

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

AQI Graph

Historical Air Quality Data

Research Center for Environmental Monitoring and Modeling

24 Hours
AQI
Research Center for Environmental Monitoring and Modeling
AQI
.
02-07-2025Time03-07-2025
52
Min.at 8:25 PM on 2nd Jul
65
Max.at 8:10 AM on 3rd Jul

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Research Center for Environmental Monitoring and Modeling, Hanoi, Ha Noi, Vietnam

AQI
Year
.
AQI

Annual AQI Trends

2022
178AQI
2023
127AQI
-29%
Fall
2024
68AQI
-46%
Fall
2025
96AQI
41%
Rise
Overall Annual Percentage (%) change of AQI in (2022 to 2025)
-11%
Fall (Improved AQI)

Most & Least Polluted Months

Most PollutedOctober, 2022191AQI
Least PollutedSeptember, 202438AQI

* This data analysis is from year 2022 - 2025

Vietnam's Metro Cities

Air Quality Index

Can Tho City AQI

Can Tho

47

temp.27°C
hum.72%
Hanoi City AQI

Hanoi

51

temp.28°C
hum.89%
Ho Chi Minh City City AQI

Ho Chi Minh City

41

temp.25°C
hum.94%
Thanh pho Thai Nguyen City AQI

Thanh pho Thai Nguyen

47

temp.26°C
hum.90%

Air Quality Calendar 2025

Research Center for Environmental Monitoring and Modeling

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jan
137
2 Jan
184
3 Jan
133
4 Jan
101
5 Jan
104
6 Jan
106
7 Jan
133
8 Jan
144
9 Jan
153
10 Jan
108
11 Jan
116
12 Jan
130
13 Jan
149
14 Jan
155
15 Jan
154
16 Jan
152
17 Jan
158
18 Jan
172
19 Jan
167
20 Jan
182
21 Jan
165
22 Jan
163
23 Jan
148
24 Jan
139
25 Jan
115
26 Jan
77
27 Jan
101
28 Jan
89
29 Jan
123
30 Jan
116
31 Jan
99
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Feb
91
2 Feb
79
3 Feb
61
4 Feb
77
5 Feb
105
6 Feb
110
7 Feb
55
8 Feb
71
9 Feb
96
10 Feb
142
11 Feb
150
12 Feb
166
13 Feb
144
14 Feb
141
15 Feb
149
16 Feb
82
17 Feb
122
18 Feb
72
19 Feb
100
20 Feb
139
21 Feb
121
22 Feb
142
23 Feb
70
24 Feb
82
25 Feb
97
26 Feb
90
27 Feb
141
28 Feb
107
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Mar
116
2 Mar
90
3 Mar
93
4 Mar
96
5 Mar
97
6 Mar
72
7 Mar
82
8 Mar
105
9 Mar
133
10 Mar
144
11 Mar
125
12 Mar
100
13 Mar
88
14 Mar
94
15 Mar
85
16 Mar
66
17 Mar
85
18 Mar
90
19 Mar
85
20 Mar
95
21 Mar
124
22 Mar
122
23 Mar
129
24 Mar
138
25 Mar
137
26 Mar
119
27 Mar
111
28 Mar
113
29 Mar
82
30 Mar
67
31 Mar
77
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Apr
102
2 Apr
136
3 Apr
113
4 Apr
145
5 Apr
122
6 Apr
133
7 Apr
128
8 Apr
121
9 Apr
97
10 Apr
101
11 Apr
101
12 Apr
106
13 Apr
95
14 Apr
103
15 Apr
106
16 Apr
110
17 Apr
102
18 Apr
107
19 Apr
100
20 Apr
89
21 Apr
89
22 Apr
98
23 Apr
104
24 Apr
91
25 Apr
86
26 Apr
83
27 Apr
72
28 Apr
69
29 Apr
81
30 Apr
76
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 May
64
2 May
87
3 May
82
4 May
80
5 May
83
6 May
78
7 May
79
8 May
81
9 May
83
10 May
85
11 May
57
12 May
72
13 May
70
14 May
66
15 May
61
16 May
62
17 May
57
18 May
57
19 May
58
20 May
59
21 May
58
22 May
58
23 May
56
24 May
55
25 May
56
26 May
61
27 May
82
28 May
79
29 May
61
30 May
60
31 May
60
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jun
53
2 Jun
55
3 Jun
55
4 Jun
61
5 Jun
73
6 Jun
61
7 Jun
60
8 Jun
60
9 Jun
66
10 Jun
62
11 Jun
64
12 Jun
63
13 Jun
57
14 Jun
64
15 Jun
80
16 Jun
65
17 Jun
63
18 Jun
56
19 Jun
68
20 Jun
74
21 Jun
68
22 Jun
65
23 Jun
65
24 Jun
70
25 Jun
61
26 Jun
60
27 Jun
61
28 Jun
56
29 Jun
58
30 Jun
55
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jul
50
2 Jul
49
3 Jul
-
4 Jul
-
5 Jul
-
6 Jul
-
7 Jul
-
8 Jul
-
9 Jul
-
10 Jul
-
11 Jul
-
12 Jul
-
13 Jul
-
14 Jul
-
15 Jul
-
16 Jul
-
17 Jul
-
18 Jul
-
19 Jul
-
20 Jul
-
21 Jul
-
22 Jul
-
23 Jul
-
24 Jul
-
25 Jul
-
26 Jul
-
27 Jul
-
28 Jul
-
29 Jul
-
30 Jul
-
31 Jul
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Research Center for Environmental Monitoring and Modeling

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn On
  • Car Filter
    Car FilterMust
  • N95 Mask
    N95 MaskMust
  • Stay Indoor
    Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Research Center for Environmental Monitoring and Modeling

  • asthma due to air pollution in Research Center for Environmental Monitoring and ModelingAsthma
  • heart due to air pollution in Research Center for Environmental Monitoring and ModelingHeart Issues
  • allergy due to air pollution in Research Center for Environmental Monitoring and ModelingAllergies
  • sinus due to air pollution in Research Center for Environmental Monitoring and ModelingSinus
  • flu due to air pollution in Research Center for Environmental Monitoring and ModelingCold/Flu
  • copd due to air pollution in Research Center for Environmental Monitoring and ModelingChronic (COPD)
asthma due to air pollution in Research Center for Environmental Monitoring and Modeling

Mid. Chances of Asthma

Asthma

Risk of Asthma symptoms is Mid. when AQI is Moderate (50-150)

Moderate symptoms including frequent wheezing, noticeable shortness of breath, chest tightness, and persistent cough.

Do's :

  • Limit outdoor activities when AQI is poor.

  • Clean indoor air with an air purifier to reduce exposure.

  • Soothe the respiratory tract with herbal teas or warm water to help alleviate symptoms.

Don'ts :

  • Exercise outdoors without a mask.

  • Stay in smoky areas with strong fumes.

Most Polluted Cities 2025

Vietnam

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2025
World's Most PollutedCity Rankings (2024)
World's Most PollutedCountry Rankings(2024)
RankCityAQIAQI Status

Standard Value

Follow

1.

Vinh Yen, Vietnam

56
Moderate
4xabove Standard

2.

Vinh, Vietnam

55
Moderate
4xabove Standard

3.

Son La, Vietnam

55
Moderate
4xabove Standard

4.

Hanoi, Vietnam

55
Moderate
4xabove Standard

5.

South Tu Liem District, Vietnam

54
Moderate
4xabove Standard

6.

North Tu Liem District, Vietnam

54
Moderate
4xabove Standard

7.

Lao Cai, Vietnam

54
Moderate
4xabove Standard

8.

Thanh Xuan District, Vietnam

53
Moderate
4xabove Standard

9.

Dong Hoi, Vietnam

53
Moderate
4xabove Standard

10.

Ham Yen District, Vietnam

52
Moderate
3xabove Standard

Last Updated: 03 Jul 2025, 12:29 PM

AQI City Rankings

Air Quality Solutions For Research Center for Environmental Monitoring and Modeling

Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
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Air Quality Solutions For Real Estates

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Research Center for Environmental Monitoring and Modeling's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for Research Center for Environmental Monitoring and Modeling
Mobile App

Empower Your Decisions with Reliable Data

Get it onApp Store
Get it onGoogle Play
Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Connect and control your air quality devices.

Air Quality FAQs

at Research Center for Environmental Monitoring and Modeling

Frequently Asked Questions About Air Quality

What is the current AQI level in Research Center for Environmental Monitoring and Modeling?

The current real-time AQI level in Research Center for Environmental Monitoring and Modeling is 57 (Moderate) due to recent rainfall by 2.1mm/hr. This was last updated 03 Jul 2025, 07:25pm (Local Time).

When was the best AQI level in Research Center for Environmental Monitoring and Modeling in the last 24 hours?

The best AQI level was 52 (Moderate) at 8:25 PM, Jul 2, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Research Center for Environmental Monitoring and Modeling in the last 24 hours?

The worst AQI level was 65 (Moderate) at 8:10 AM (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Research Center for Environmental Monitoring and Modeling during last 24 hours?

The AQI levels in Research Center for Environmental Monitoring and Modeling have been fluctuating throughout the last 24 hours. The levels have increased by highest 65 at 8:10 AM (Local Time), lowest 52 at 8:25 PM, Jul 2, 2025 (Local Time).

What actions are recommended as per the current AQI level in Research Center for Environmental Monitoring and Modeling?

Current AQI levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

Arizona Dust Storm 2025: How the Sudden Storm Pushed AQI to Hazardous Levels?

Arizona Dust Storm 2025: How the Sudden Storm Pushed AQI to Hazardous Levels?

2 Jul 2025Shakshi
Air Pollution Comparison Between England vs India: What a 45% Asthma Spike in the UK Reveals

Air Pollution Comparison Between England vs India: What a 45% Asthma Spike in the UK Reveals

1 Jul 2025Shakshi
Urban Heat Islands in India: The 2024 Climate Crisis in Metro Cities

Urban Heat Islands in India: The 2024 Climate Crisis in Metro Cities

24 Jun 2025Shakshi
Delhi AQI Drops After Months: How Rain Provided Temporary Relief in Pollution Levels 

Delhi AQI Drops After Months: How Rain Provided Temporary Relief in Pollution Levels 

19 Jun 2025Shakshi
AQI.IN Launched First Ever City-Level Climate Change Severity Index -June 2025

AQI.IN Launched First Ever City-Level Climate Change Severity Index -June 2025

19 Jun 2025Gyane Haobijam
Noise Pollution in Ocean: The Silent Threat Beneath the Waves

Noise Pollution in Ocean: The Silent Threat Beneath the Waves

17 Jun 2025Shakshi
Heat Alert in Delhi: “Feels Like” 49 °C Amid Heatwaves & Dust Storm

Heat Alert in Delhi: “Feels Like” 49 °C Amid Heatwaves & Dust Storm

10 Jun 2025Shakshi
Wildfire Smoke in Canada 2025: AQI Impact, Orange Skies, and What to Do

Wildfire Smoke in Canada 2025: AQI Impact, Orange Skies, and What to Do

9 Jun 2025Shakshi
Breaking News: Delhi’s Air Pollution Mitigation Plan 2025 Launched – Aiming for Cleaner Days Ahead

Breaking News: Delhi’s Air Pollution Mitigation Plan 2025 Launched – Aiming for Cleaner Days Ahead

5 Jun 2025Shakshi
World Environment Day 2025: Why Plastic Pollution in Indian Cities Is a Health Emergency?

World Environment Day 2025: Why Plastic Pollution in Indian Cities Is a Health Emergency?

5 Jun 2025Shakshi
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