IJmuiden vs Uithoorn AQI Comparison

Side-by-side OpenAQ-derived air quality comparison for IJmuiden and Uithoorn. Values use mapped daily PM2.5 and PM10 observations normalized to US EPA AQI.

Lower average AQI: Uithoorn (0-pt gap)PM2.5: IJmuiden 18.4 ug/m3 · Uithoorn 18.6 ug/m3

Source: OpenAQ local exports mapped to AQI Now cities; city summaries cover 2024-11-24–2024-12-31 and 2024-08-24–2024-12-31.

Compare two cities

City A

City B

IJmuiden vs Uithoorn

IJmuiden

Noord-Holland, Netherlands

PM2.5: 18.4 ug/m3
PM10: 21.4 ug/m3
Worst month: December
Trend: n/a

EPA category: Moderate

Uithoorn

Noord-Holland, Netherlands

PM2.5: 18.6 ug/m3
PM10: 20.9 ug/m3
Worst month: December
Trend: n/a

EPA category: Moderate

Lower average AQI in this selected period: Uithoorn. Values are historical OpenAQ-derived city summaries, not live readings.

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

IJmuiden

Uithoorn

What this comparison measures

Average EPA AQI — city-level daily AQI values averaged across the OpenAQ coverage window.
PM2.5 and PM10 — mapped monitor concentrations aggregated to daily city averages.
Seasonality — worst and cleanest months from the monthly city rollups.
Trend — difference between the earliest and latest yearly AQI average in this build.