Sweden City AQI Comparison
Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI. This pilot covers 31 eligible cities with OpenAQ-derived daily AQI history.
Compare two cities
vs
Featured comparisons
Malmö vs Kungsbacka→
Highest vs cleanest city
AQI gap 20333 / 310 days
Malmö vs Gothenburg→
Highest-AQI pair
AQI gap 1333 / 310 days
Malmö vs Klippansbruk→
High vs mid-range city
AQI gap 7333 / 153 days
Gothenburg vs Kungsbacka→
Second-highest vs cleanest city
AQI gap 19310 / 310 days
Kalmar vs Åkersberga→
High vs low-AQI city
AQI gap 17309 / 25 days
Gothenburg vs Åkersberga→
High vs low-AQI city
AQI gap 17310 / 25 days
Gothenburg vs Kalmar→
Similar high-AQI cities
AQI gap 0310 / 309 days
Kalmar vs Norrtälje→
High vs low-AQI city
AQI gap 11309 / 326 days
Kalmar vs Visby→
Similar high-AQI cities
AQI gap 0309 / 365 days
Visby vs Upplands Väsby→
High vs low-AQI city
AQI gap 10365 / 335 days
Visby vs Skellefteå→
Similar high-AQI cities
AQI gap 0365 / 206 days
Skellefteå vs Uppsala→
High vs low-AQI city
AQI gap 10206 / 313 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.