2017-2023
2023
World Air Quality Report
0-5
Meets WHO guideline
5.1-10
Exceeds by 1 to 2 times
10.1-15
Exceeds by 2 to 3 times
15.1-25
Exceeds by 3 to 5 times
25.1-35
Exceeds by 5 to 7 times
35.1-50
Exceeds by 7 to 10 times
>50.1
Exceeds by over 10 times
Rank | City | 2023 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1206 | Seoul, South Korea | 19.7 | 25.3 | 29.9 | 30.2 | 21.5 | 18.3 | 17 | 16.4 | 12.9 | 11.2 | 15 | 17 | 21.8 | 18.3 | 19.7 | 20.9 | 24.8 | 23.3 | 25.2 |
1-1 of 1