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Daejeon Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-08-20 04:09:41 PM (Local Time)

location image
Live AQI
55(AQI-US)
Air Quality is
Moderate
pm10 :  25 µg/m³
PM2.5 :  11 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Daejeon
partly cloudy

33 °C

Partly cloudy
Humidity
Humidity56 %
Wind Speed
Wind Speed13 km/h
UV Index
UV Index3
Last Updated: 2025-08-20 04:09:41 PM (Local Time)
Map

Daejeon

Major Air Pollutants

Daejeon

PM2.5's Icon

Particulate Matter(PM2.5)

11µg/m³

PM10's Icon

Particulate Matter(PM10)

25µg/m³

CO's Icon

Carbon Monoxide(CO)

158ppb

SO2's Icon

Sulfur Dioxide(SO2)

2ppb

NO2's Icon

Nitrogen Dioxide(NO2)

4ppb

O3's Icon

Ozone(O3)

25ppb

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AQI Graph

Historical Air Quality Data

Daejeon

24 Hours
AQI
Daejeon
AQI
.
19-08-2025Time20-08-2025
33
Min.at 6:09 PM on 19th Aug
55
Max.at 4:09 PM on 20th Aug

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Daejeon, Daejeon, South Korea

AQI
Year
.
AQI

Annual AQI Trends

2020
57AQI
2021
60AQI
5%
Rise
2022
63AQI
5%
Rise
2023
63AQI
0%
No Change
2024
54AQI
-14%
Fall
2025
60AQI
11%
Rise
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
1%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedFebruary, 202388AQI
Least PollutedJuly, 202434AQI

* This data analysis is from year 2020 - 2025

Daejeon's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
55
11
25
29
73
Moderate
61
14
39
29
73
Moderate
55
11
24
29
71
Moderate
54
11
21
29
72
Moderate
55
11
22
29
68
Moderate
54
11
21
29
72
Moderate
58
13
37
28
70
Moderate
54
11
21
29
72
Moderate
56
12
22
30
74
Moderate
56
12
26
29
74
Moderate
55
11
33
29
74
Moderate
55
11
23
30
74
Moderate
54
11
24
30
74
Moderate
55
11
21
29
70
Moderate
54
11
21
30
72
Moderate
54
11
23
28
73
Moderate
54
11
21
30
72

South Korea's Metro Cities

Air Quality Index

Busan City AQI

Busan

51

temp.31°C
hum.71%
Daegu City AQI

Daegu

45

temp.34°C
hum.44%
Daejeon City AQI

Daejeon

54

temp.33°C
hum.56%
Gwangju City AQI

Gwangju

53

temp.33°C
hum.63%
Incheon City AQI

Incheon

39

temp.32°C
hum.63%
Sejong City AQI

Sejong

42

temp.33°C
hum.56%
Seoul City AQI

Seoul

39

temp.32°C
hum.63%
Ulsan City AQI

Ulsan

51

temp.31°C
hum.71%

Air Quality Calendar 2025

Daejeon

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jan
62
2 Jan
60
3 Jan
54
4 Jan
54
5 Jan
59
6 Jan
76
7 Jan
53
8 Jan
61
9 Jan
41
10 Jan
55
11 Jan
58
12 Jan
69
13 Jan
76
14 Jan
81
15 Jan
55
16 Jan
61
17 Jan
82
18 Jan
79
19 Jan
73
20 Jan
95
21 Jan
127
22 Jan
130
23 Jan
117
24 Jan
107
25 Jan
81
26 Jan
57
27 Jan
64
28 Jan
49
29 Jan
57
30 Jan
57
31 Jan
71
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Feb
83
2 Feb
89
3 Feb
60
4 Feb
52
5 Feb
47
6 Feb
51
7 Feb
50
8 Feb
45
9 Feb
50
10 Feb
57
11 Feb
69
12 Feb
65
13 Feb
50
14 Feb
71
15 Feb
56
16 Feb
96
17 Feb
53
18 Feb
58
19 Feb
47
20 Feb
54
21 Feb
50
22 Feb
57
23 Feb
53
24 Feb
52
25 Feb
53
26 Feb
75
27 Feb
61
28 Feb
64
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Mar
74
2 Mar
68
3 Mar
49
4 Mar
44
5 Mar
36
6 Mar
62
7 Mar
73
8 Mar
70
9 Mar
81
10 Mar
79
11 Mar
88
12 Mar
82
13 Mar
78
14 Mar
73
15 Mar
46
16 Mar
62
17 Mar
59
18 Mar
72
19 Mar
79
20 Mar
89
21 Mar
93
22 Mar
101
23 Mar
98
24 Mar
103
25 Mar
122
26 Mar
82
27 Mar
87
28 Mar
68
29 Mar
52
30 Mar
51
31 Mar
60
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Apr
71
2 Apr
76
3 Apr
77
4 Apr
79
5 Apr
66
6 Apr
64
7 Apr
64
8 Apr
73
9 Apr
65
10 Apr
75
11 Apr
73
12 Apr
63
13 Apr
58
14 Apr
45
15 Apr
53
16 Apr
61
17 Apr
64
18 Apr
77
19 Apr
53
20 Apr
60
21 Apr
46
22 Apr
41
23 Apr
40
24 Apr
56
25 Apr
59
26 Apr
48
27 Apr
41
28 Apr
52
29 Apr
59
30 Apr
56
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 May
50
2 May
49
3 May
48
4 May
46
5 May
47
6 May
45
7 May
50
8 May
65
9 May
42
10 May
46
11 May
62
12 May
64
13 May
69
14 May
70
15 May
53
16 May
46
17 May
46
18 May
56
19 May
58
20 May
44
21 May
43
22 May
54
23 May
56
24 May
45
25 May
44
26 May
58
27 May
70
28 May
71
29 May
76
30 May
66
31 May
74
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jun
81
2 Jun
91
3 Jun
78
4 Jun
60
5 Jun
56
6 Jun
61
7 Jun
64
8 Jun
62
9 Jun
60
10 Jun
57
11 Jun
52
12 Jun
56
13 Jun
62
14 Jun
42
15 Jun
51
16 Jun
55
17 Jun
60
18 Jun
61
19 Jun
63
20 Jun
48
21 Jun
42
22 Jun
33
23 Jun
46
24 Jun
45
25 Jun
38
26 Jun
49
27 Jun
56
28 Jun
58
29 Jun
46
30 Jun
45
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jul
43
2 Jul
41
3 Jul
51
4 Jul
51
5 Jul
47
6 Jul
50
7 Jul
57
8 Jul
58
9 Jul
51
10 Jul
49
11 Jul
51
12 Jul
51
13 Jul
59
14 Jul
53
15 Jul
42
16 Jul
51
17 Jul
41
18 Jul
43
19 Jul
34
20 Jul
42
21 Jul
40
22 Jul
35
23 Jul
45
24 Jul
51
25 Jul
50
26 Jul
43
27 Jul
38
28 Jul
49
29 Jul
49
30 Jul
47
31 Jul
51
August
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Aug
56
2 Aug
63
3 Aug
61
4 Aug
51
5 Aug
51
6 Aug
49
7 Aug
48
8 Aug
48
9 Aug
53
10 Aug
46
11 Aug
51
12 Aug
43
13 Aug
39
14 Aug
39
15 Aug
39
16 Aug
38
17 Aug
40
18 Aug
50
19 Aug
-
20 Aug
-
21 Aug
-
22 Aug
-
23 Aug
-
24 Aug
-
25 Aug
-
26 Aug
-
27 Aug
-
28 Aug
-
29 Aug
-
30 Aug
-
31 Aug
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Daejeon

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

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

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

Daejeon

  • asthma due to air pollution in DaejeonAsthma
  • heart due to air pollution in DaejeonHeart Issues
  • allergy due to air pollution in DaejeonAllergies
  • sinus due to air pollution in DaejeonSinus
  • flu due to air pollution in DaejeonCold/Flu
  • copd due to air pollution in DaejeonChronic (COPD)
asthma due to air pollution in Daejeon

Mild Chances of Asthma

Asthma

Risk of Asthma symptoms is Mild 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.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

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.

Sokcho, South Korea

66
Moderate
4xabove Standard

2.

Wonju, South Korea

66
Moderate
4xabove Standard

3.

Gangneung, South Korea

64
Moderate
4xabove Standard

4.

Pocheon, South Korea

63
Moderate
4xabove Standard

5.

Gwangmyeongni, South Korea

63
Moderate
4xabove Standard

6.

Bucheon, South Korea

63
Moderate
4xabove Standard

7.

Goyang, South Korea

63
Moderate
4xabove Standard

8.

Gimpo, South Korea

62
Moderate
4xabove Standard

9.

Uijeongbu, South Korea

62
Moderate
4xabove Standard

10.

Anyang, South Korea

62
Moderate
4xabove Standard

Last Updated: 20 Aug 2025, 07:12 AM

AQI City Rankings

Air Quality Solutions For Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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 Daejeon

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.

Daejeon'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 Daejeon
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 Daejeon

Frequently Asked Questions About Air Quality

What is the current AQI level in Daejeon?

The current real-time AQI level in Daejeon is 55 (Moderate). This was last updated 2025-08-20 04:09:41 PM (Local Time).

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

The best AQI level was 33 (Good) at 6:09 PM, Aug 19, 2025 (Local Time) during the last 24 hours.

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

The worst AQI level was 55 (Moderate) at 4:09 PM (Local Time) during the last 24 hours.

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

The AQI levels in Daejeon have been fluctuating throughout the last 24 hours. The levels have increased by highest 55 at 4:09 PM (Local Time), lowest 33 at 6:09 PM, Aug 19, 2025 (Local Time).

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

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

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Prana Sense

Air Quality Monitor

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

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Pocket PM

Air Quality Monitor

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

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Cair +

Indoor Air Quality Monitor

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

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