WorldArrow iconSouth Korea

Live most polluted city ranking

Real-time South Korea most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of South Korea

Buan

73

2
The national flag of South Korea

Gimpo

66

3
The national flag of South Korea

Guri

64

4
The national flag of South Korea

Yeongam

64

5
The national flag of South Korea

Bucheon

62

6
The national flag of South Korea

Incheon

62

7
The national flag of South Korea

Paju

62

8
The national flag of South Korea

Yeoju

62

9
The national flag of South Korea

Gimcheon

60

10
The national flag of South Korea

Siheung

60

2025 South Korea most polluted city

Taisen-ri, Chungcheongnam-do

74

Live cleanest city ranking

Real-time South Korea cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of South Korea

Chungju

17

2
The national flag of South Korea

Sejong

17

3
The national flag of South Korea

Jecheon

18

4
The national flag of South Korea

Danyang

20

5
The national flag of South Korea

Icheon

21

6
The national flag of South Korea

Busan

22

7
The national flag of South Korea

Geumsan

22

8
The national flag of South Korea

Gongju

22

9
The national flag of South Korea

Hoengseong

22

10
The national flag of South Korea

Wonju

22

2025 South Korea cleanest city

Goseong, Gyeongsangnam-do

52

2025 country air quality average

How polluted is South Korea?

IQAir exclamation icon

In 2025 in South Korea, the annual PM2.5 concentration was 3.4 times the WHO annual PM2.5 guideline.

2025 AQI⁺ country ranking

Which country had the worst air quality in 2025?

#CountryPopulationAQI⁺ US
1
The national flag of South Korea

Pakistan

231,402,117

159

2
The national flag of South Korea

Bangladesh

169,356,251

158

3
The national flag of South Korea

Tajikistan

9,750,064

152

4
The national flag of South Korea

Chad

17,179,740

146

5
The national flag of South Korea

Democratic Republic of the Congo

95,894,118

137

6
The national flag of South Korea

India

1,407,563,842

134

7
The national flag of South Korea

Kuwait

4,250,114

126

8
The national flag of South Korea

Uganda

45,853,778

119

9
The national flag of South Korea

Egypt

109,262,178

114

10
The national flag of South Korea

Uzbekistan

34,915,100

107

55
The national flag of South Korea

South Korea

51,744,876

66

Worldwide PM2.5 ranking

2025 South Korea global rank in air pollution

55/143

Wildfires in South Korea

Real-time information

Active fires

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