AQIPM2.5PM10COSO2NO2O3
View aqi DataAQIView weather DataWeather
Live

Seoul Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-05-30 10:09:46 PM (Local Time)

location image
Live AQI
85
Air Quality is
Moderate
pm10 :  47 µg/m³
PM2.5 :  28 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level in Seoul
clear

21 °C

Clear
Humidity
Humidity56 %
Wind Speed
Wind Speed4 km/h
UV Index
UV Index0
Last Updated: 2025-05-30 10:09:46 PM (Local Time)
Map

Seoul

Major Air Pollutants

Seoul

PM2.5's Icon

Particulate Matter(PM2.5)

28µg/m³

PM10's Icon

Particulate Matter(PM10)

47µg/m³

CO's Icon

Carbon Monoxide(CO)

474ppb

SO2's Icon

Sulfur Dioxide(SO2)

3ppb

NO2's Icon

Nitrogen Dioxide(NO2)

23ppb

O3's Icon

Ozone(O3)

37ppb

Trending in South Korea

Big News: AQI App is Now on Apple Watch!

Big News: AQI App is Now on Apple Watch!

How Air Pollution Fuels COPD—and What You Can Do About It?

How Air Pollution Fuels COPD—and What You Can Do About It?

The Mask Returns: COVID Cases Spike in Singapore, Hong Kong, and India

The Mask Returns: COVID Cases Spike in Singapore, Hong Kong, and India

Long-Term Exposure to Polluted Air and Its Impact on Heart Health: A Global Perspective

Long-Term Exposure to Polluted Air and Its Impact on Heart Health: A Global Perspective

Methane Emissions from Delhi’s Landfills: An Invisible Threat

Methane Emissions from Delhi’s Landfills: An Invisible Threat

Carbon monoxide (CO) or PM2.5: Which is more dangerous for human health and the environment?

Carbon monoxide (CO) or PM2.5: Which is more dangerous for human health and the environment?

The Hidden Link Between Air Pollution and Parkinson’s Disease: What the Study Shows?

The Hidden Link Between Air Pollution and Parkinson’s Disease: What the Study Shows?

IS AIR POLLUTION SOLELY OUR FAULT? DEBUNKING THE MYTH WITH HARD TRUTH

IS AIR POLLUTION SOLELY OUR FAULT? DEBUNKING THE MYTH WITH HARD TRUTH

From Smog to Songbirds: How the U.S. Clean Air Act Cleared the Skies

From Smog to Songbirds: How the U.S. Clean Air Act Cleared the Skies

Two Worlds, One Breath: World Asthma Day 2025 and the Link Between Air Pollution and Asthma

Two Worlds, One Breath: World Asthma Day 2025 and the Link Between Air Pollution and Asthma

Case Study : How Prana Air Helped the American School of Bombay in Improving Air Quality?

Case Study : How Prana Air Helped the American School of Bombay in Improving Air Quality?

Why Air Quality Monitoring is Essential for Sustainable Development: Key Insights

Why Air Quality Monitoring is Essential for Sustainable Development: Key Insights

Understand the Indoor Air Quality in Schools: Is Your Child Breathing Safe Air?

Understand the Indoor Air Quality in Schools: Is Your Child Breathing Safe Air?

Sleep Interrupted: How Air Pollution Steals Your Res

Sleep Interrupted: How Air Pollution Steals Your Res

Understanding the AQI: What the Air You Breathe Means for Your Health

Understanding the AQI: What the Air You Breathe Means for Your Health

AQI Graph

Historical Air Quality Data

Seoul

24 Hours
AQI
Seoul

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Seoul, Seoul, South Korea

AQI
Year
.
AQI

Annual AQI Trends

2020
64AQI
2021
66AQI
3%
Rise
2022
65AQI
-2%
Fall
2023
66AQI
2%
Rise
2024
61AQI
-8%
Fall
2025
73AQI
20%
Rise
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
3%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedMarch, 202193AQI
Least PollutedSeptember, 202134AQI

* This data analysis is from year 2020 - 2025

Seoul's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Bulgwang Dong
Moderate
72
20
41
23
47
Cheonggyecheon
Moderate
90
30
52
23
52
Cheongryang Ri
Moderate
85
27
50
23
52
Dobong Gu
Moderate
62
15
34
23
52
Dongdaemun Gu
Moderate
91
31
52
23
52
Gangbuk Gu
Moderate
80
25
36
23
52
Gangbyeonbukro
Moderate
82
26
49
23
53
Jongno Gu
Moderate
93
32
52
23
52
Jongro
Moderate
88
29
50
23
52
Jung Gu
Moderate
86
28
45
23
52
Mapo Gu
Moderate
84
27
50
23
53
Naebusunhwanro
Moderate
72
20
43
23
51
Seodaemun Gu
Moderate
72
21
34
23
50
Seongbuk Gu
Moderate
72
21
41
23
52
Seongdong Gu
Moderate
97
34
53
23
53
Seoul Plaza communicate information
Moderate
96
34
53
23
52
Seouryeok
Moderate
92
31
53
23
51
Sinchon
Poor
101
36
55
23
51
Sinchon Ro
Poor
101
36
55
23
51
Sinsa Dong
Moderate
89
29
52
23
53
Yongsan Gu
Moderate
88
29
45
23
50

South Korea's Metro Cities

Air Quality Index

Busan City AQI

Busan

53

temp.18°C
hum.56%
Daegu City AQI

Daegu

49

temp.19°C
hum.56%
Daejeon City AQI

Daejeon

43

temp.17°C
hum.52%
Gwangju City AQI

Gwangju

82

temp.18°C
hum.73%
Incheon City AQI

Incheon

87

temp.20°C
hum.60%
Sejong City AQI

Sejong

55

temp.17°C
hum.52%
Seoul City AQI

Seoul

85

temp.21°C
hum.56%
Ulsan City AQI

Ulsan

44

temp.18°C
hum.56%

Air Quality Calendar 2025

Seoul

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jan
78
2 Jan
59
3 Jan
63
4 Jan
64
5 Jan
76
6 Jan
100
7 Jan
62
8 Jan
75
9 Jan
48
10 Jan
62
11 Jan
66
12 Jan
81
13 Jan
100
14 Jan
108
15 Jan
60
16 Jan
83
17 Jan
86
18 Jan
87
19 Jan
92
20 Jan
137
21 Jan
145
22 Jan
150
23 Jan
116
24 Jan
108
25 Jan
66
26 Jan
57
27 Jan
68
28 Jan
64
29 Jan
65
30 Jan
56
31 Jan
75
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Feb
84
2 Feb
77
3 Feb
57
4 Feb
54
5 Feb
46
6 Feb
56
7 Feb
52
8 Feb
50
9 Feb
52
10 Feb
60
11 Feb
84
12 Feb
80
13 Feb
58
14 Feb
102
15 Feb
62
16 Feb
120
17 Feb
52
18 Feb
69
19 Feb
50
20 Feb
58
21 Feb
57
22 Feb
63
23 Feb
58
24 Feb
61
25 Feb
59
26 Feb
71
27 Feb
60
28 Feb
89
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Mar
109
2 Mar
83
3 Mar
60
4 Mar
48
5 Mar
39
6 Mar
76
7 Mar
101
8 Mar
89
9 Mar
107
10 Mar
121
11 Mar
110
12 Mar
99
13 Mar
92
14 Mar
78
15 Mar
61
16 Mar
74
17 Mar
67
18 Mar
73
19 Mar
82
20 Mar
95
21 Mar
110
22 Mar
117
23 Mar
124
24 Mar
122
25 Mar
131
26 Mar
96
27 Mar
95
28 Mar
63
29 Mar
57
30 Mar
50
31 Mar
62
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Apr
84
2 Apr
83
3 Apr
78
4 Apr
80
5 Apr
59
6 Apr
69
7 Apr
75
8 Apr
78
9 Apr
76
10 Apr
81
11 Apr
91
12 Apr
69
13 Apr
63
14 Apr
48
15 Apr
59
16 Apr
67
17 Apr
73
18 Apr
86
19 Apr
52
20 Apr
63
21 Apr
55
22 Apr
46
23 Apr
41
24 Apr
68
25 Apr
64
26 Apr
59
27 Apr
48
28 Apr
60
29 Apr
70
30 Apr
61
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 May
64
2 May
52
3 May
50
4 May
52
5 May
52
6 May
43
7 May
57
8 May
64
9 May
51
10 May
58
11 May
77
12 May
77
13 May
77
14 May
74
15 May
71
16 May
64
17 May
51
18 May
60
19 May
63
20 May
45
21 May
49
22 May
52
23 May
63
24 May
46
25 May
53
26 May
68
27 May
84
28 May
90
29 May
82
30 May
-
31 May
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Seoul

1.1Cigarettes per day

Cigarette
Weekly 7.7 Cigarettes
Monthly 33.0 Cigarettes

Breathing the air in this location is as harmful as smoking 1.1 cigarettes a day.

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.

Prevent Health Problems: Understand Your Risks

Seoul

  • asthma due to air pollution in SeoulAsthma
  • heart due to air pollution in SeoulHeart Issues
  • allergy due to air pollution in SeoulAllergies
  • sinus due to air pollution in SeoulSinus
  • flu due to air pollution in SeoulCold/Flu
  • copd due to air pollution in SeoulChronic (COPD)
asthma due to air pollution in Seoul

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

South Korea

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.

Tangjin, South Korea

94
Moderate
6xabove Standard

2.

Iksan, South Korea

92
Moderate
6xabove Standard

3.

Hongseong, South Korea

92
Moderate
6xabove Standard

4.

Osan, South Korea

92
Moderate
6xabove Standard

5.

Ansan, South Korea

90
Moderate
6xabove Standard

6.

Pyeongtaek, South Korea

90
Moderate
6xabove Standard

7.

Kunsan, South Korea

90
Moderate
6xabove Standard

8.

Chonan, South Korea

89
Moderate
6xabove Standard

9.

Goyang, South Korea

89
Moderate
6xabove Standard

10.

Gimpo, South Korea

88
Moderate
6xabove Standard

Last Updated: 30 May 2025, 01:12 PM

AQI City Rankings

Air Quality Solutions For Seoul

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
air quality solutions for offices for Seoul

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

air quality solutions for smart-city for Seoul

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes for Seoul

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

air quality solutions for hotels for Seoul

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

air quality solutions for restaurants for Seoul

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

air quality solutions for rmc-plants for Seoul

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

air quality solutions for fitness-center for Seoul

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

air quality solutions for parking-lot for Seoul

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

air quality solutions for retail-stores for Seoul

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport for Seoul

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

air quality solutions for construction-sites for Seoul

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

air quality solutions for hospitals for Seoul

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom for Seoul

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

air quality solutions for banks for Seoul

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

air quality solutions for cinema for Seoul

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

air quality solutions for real-estates for Seoul

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Seoul'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 Seoul
Mobile App

Empower Your Decisions with Reliable Data

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 Seoul

Frequently Asked Questions About Air Quality

What is the current AQI level in Seoul?

The current real-time AQI level in Seoul is 85 (Moderate). This was last updated 2025-05-30 10:09:46 PM (Local Time).

When was the best AQI level in Seoul in the last 24 hours?

The best AQI level was 62 (Moderate) at 2:09 PM (Local Time) during the last 24 hours.

When was the worst AQI level in Seoul in the last 24 hours?

The worst AQI level was 90 (Moderate) at 10:24 PM, May 29, 2025 (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Seoul during last 24 hours?

The AQI levels in Seoul have been fluctuating throughout the last 24 hours. The levels have increased by highest 90 at 10:24 PM, May 29, 2025 (Local Time), lowest 62 at 2:09 PM (Local Time).

What actions are recommended as per the current AQI level in Seoul?

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.

Delhi Rain May 2025 Breaks Records — Why It Happened and What’s Next

Delhi Rain May 2025 Breaks Records — Why It Happened and What’s Next

26 May 2025Shakshi
How Air Pollution Fuels COPD—and What You Can Do About It?

How Air Pollution Fuels COPD—and What You Can Do About It?

22 May 2025Shakshi
How Heat and Air Pollution Can Be Increasing Mortality in India: New Study Reveals

How Heat and Air Pollution Can Be Increasing Mortality in India: New Study Reveals

19 May 2025Shakshi
Thick Dust Covers New Delhi: What’s Happening on May 15, 2025?

Thick Dust Covers New Delhi: What’s Happening on May 15, 2025?

15 May 2025Shakshi
Long-Term Exposure to Polluted Air and Its Impact on Heart Health: A Global Perspective

Long-Term Exposure to Polluted Air and Its Impact on Heart Health: A Global Perspective

15 May 2025Gyane
Carbon monoxide (CO) or PM2.5: Which is more dangerous for human health and the environment?

Carbon monoxide (CO) or PM2.5: Which is more dangerous for human health and the environment?

14 May 2025Shakshi
Methane Emissions from Delhi’s Landfills: An Invisible Threat

Methane Emissions from Delhi’s Landfills: An Invisible Threat

12 May 2025Shakshi
The Hidden Link Between Air Pollution and Parkinson’s Disease: What the Study Shows?

The Hidden Link Between Air Pollution and Parkinson’s Disease: What the Study Shows?

7 May 2025Shakshi
World Asthma Day 2025: The Link Between Air Pollution and Asthma

World Asthma Day 2025: The Link Between Air Pollution and Asthma

6 May 2025Shakshi
Why Air Quality Monitoring is Essential for Sustainable Development: Key Insights

Why Air Quality Monitoring is Essential for Sustainable Development: Key Insights

1 May 2025Gyane
Prana Air Logo

Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
Prana Air Logo

Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor
Prana Air Logo

Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor