Air Quality by Country
Average AQI Rankings
Ranked by average AQI across monitored cities · Data from OpenAQ
Poland
1 city monitored
231
Avg AQI · Very Unhealthy
Indonesia
1 city monitored
174
Avg AQI · Unhealthy
Saudi Arabia
1 city monitored
115
Avg AQI · Unhealthy for Sensitive Groups
Czech Republic
1 city monitored
112
Avg AQI · Unhealthy for Sensitive Groups
Kenya
1 city monitored
110
Avg AQI · Unhealthy for Sensitive Groups
Netherlands
1 city monitored
103
Avg AQI · Unhealthy for Sensitive Groups
South Korea
15 cities monitored
100
Avg AQI · Moderate
South Africa
2 cities monitored
95
Avg AQI · Moderate
Vietnam
2 cities monitored
93
Avg AQI · Moderate
Switzerland
1 city monitored
91
Avg AQI · Moderate
India
1 city monitored
88
Avg AQI · Moderate
Singapore
1 city monitored
82
Avg AQI · Moderate
Philippines
1 city monitored
79
Avg AQI · Moderate
Germany
6 cities monitored
76
Avg AQI · Moderate
Malaysia
1 city monitored
75
Avg AQI · Moderate
China
10 cities monitored
71
Avg AQI · Moderate
Peru
1 city monitored
68
Avg AQI · Moderate
Italy
2 cities monitored
64
Avg AQI · Moderate
Japan
4 cities monitored
62
Avg AQI · Moderate
Spain
1 city monitored
61
Avg AQI · Moderate
Chile
1 city monitored
61
Avg AQI · Moderate
Egypt
1 city monitored
57
Avg AQI · Moderate
United Kingdom
7 cities monitored
55
Avg AQI · Moderate
Greece
1 city monitored
50
Avg AQI · Good
France
7 cities monitored
46
Avg AQI · Good
Mexico
1 city monitored
42
Avg AQI · Good
Colombia
1 city monitored
40
Avg AQI · Good
Brazil
2 cities monitored
36
Avg AQI · Good
Finland
1 city monitored
33
Avg AQI · Good
United States
6 cities monitored
31
Avg AQI · Good
Australia
6 cities monitored
29
Avg AQI · Good
Canada
2 cities monitored
24
Avg AQI · Good
Thailand
1 city monitored
24
Avg AQI · Good
Nigeria
1 city monitored
8
Avg AQI · Good
Understanding Country Air Quality
Country-level air quality is calculated as the average AQI across all monitored cities in each country. This provides a broad overview of air pollution patterns, though individual cities within a country can vary significantly based on local conditions.
Factors affecting country-wide air quality include industrial activity, vehicle emissions, geographic features, seasonal weather patterns, and environmental regulations. Click on any country to see detailed city-by-city air quality data.
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