Netherlands City AQI Comparison
Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI. This pilot covers 71 eligible cities with OpenAQ-derived daily AQI history.
Compare two cities
vs
Featured comparisons
Doetinchem vs Rotterdam→
Highest vs cleanest city
AQI gap 56241 / 255 days
Doetinchem vs Hengelo→
Highest-AQI pair
AQI gap 3241 / 56 days
Doetinchem vs Breda→
High vs mid-range city
AQI gap 29241 / 362 days
Hengelo vs Rotterdam→
Second-highest vs cleanest city
AQI gap 5356 / 255 days
Kampen vs Lemmer→
High vs low-AQI city
AQI gap 42158 / 356 days
Hengelo vs Lemmer→
High vs low-AQI city
AQI gap 4456 / 356 days
Hengelo vs Kampen→
Similar high-AQI cities
AQI gap 256 / 158 days
Kampen vs Zevenaar→
High vs low-AQI city
AQI gap 36158 / 364 days
Kampen vs IJmuiden→
Similar high-AQI cities
AQI gap 1158 / 38 days
IJmuiden vs Wormer→
High vs low-AQI city
AQI gap 3338 / 260 days
IJmuiden vs Uithoorn→
Similar high-AQI cities
AQI gap 038 / 130 days
Uithoorn vs Zuidhorn→
High vs low-AQI city
AQI gap 33130 / 360 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.