Belgium City AQI Comparison
Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI. This pilot covers 67 eligible cities with OpenAQ-derived daily AQI history.
Compare two cities
vs
Featured comparisons
Wielsbeke vs Bastogne→
Highest vs cleanest city
AQI gap 56171 / 328 days
Wielsbeke vs Etterbeek→
Highest-AQI pair
AQI gap 0171 / 132 days
Wielsbeke vs Dessel→
High vs mid-range city
AQI gap 25171 / 324 days
Etterbeek vs Bastogne→
Second-highest vs cleanest city
AQI gap 56132 / 328 days
Niel vs Saint-Vith→
High vs low-AQI city
AQI gap 43185 / 323 days
Etterbeek vs Saint-Vith→
High vs low-AQI city
AQI gap 52132 / 323 days
Etterbeek vs Niel→
Similar high-AQI cities
AQI gap 9132 / 185 days
Niel vs Bertrix→
High vs low-AQI city
AQI gap 42185 / 327 days
Niel vs Bruges→
Similar high-AQI cities
AQI gap 1185 / 217 days
Bruges vs Couvin→
High vs low-AQI city
AQI gap 39217 / 328 days
Bruges vs Mortsel→
Similar high-AQI cities
AQI gap 0217 / 229 days
Mortsel vs Arlon→
High vs low-AQI city
AQI gap 39229 / 327 days
Methodology
The extractor maps OpenAQ monitoring locations to the nearest AQI Now city in the same country, aggregates PM2.5 and PM10 to daily city averages, and converts those concentrations to US EPA AQI. Country tool pages use only city summaries that satisfy the configured minimum daily coverage threshold.