🏰 Cleanest Air
Cities with Best Air Quality in Eastern Europe in 2026
Eastern European cities with the cleanest air for expats and digital nomads — ranked by Air Quality Index.
💨 How we rank: Cities are ranked by Air Quality Index (AQI) — lower is better. AQI 0–50 is Good, 51–100 is Moderate, 101–150 is Unhealthy for sensitive groups. PM2.5 (fine particulate matter) is shown as a secondary indicator — WHO guideline is under 15 μg/m³.
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PragueCzechia💨 GoodAQI: 23🔬 PM2.5: 4 μg/m³
23
AQI
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TbilisiGeorgia💨 GoodAQI: 23🔬 PM2.5: 8.1 μg/m³
23
AQI
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WarsawPoland💨 GoodAQI: 27🔬 PM2.5: 5.1 μg/m³
27
AQI
#4
BudapestHungary💨 GoodAQI: 29🔬 PM2.5: 3.2 μg/m³
29
AQI
#5
SofiaBulgaria💨 GoodAQI: 39🔬 PM2.5: 7.9 μg/m³
39
AQI
#6
BucharestRomania💨 GoodAQI: 47🔬 PM2.5: 12.5 μg/m³
47
AQI
#7
BelgradeSerbia💨 ModerateAQI: 56🔬 PM2.5: 5.5 μg/m³
56
AQI
💨 Best air quality in other regions
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