Hamina vs Pori AQI Comparison

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

Lower average AQI: Hamina (12-pt gap)PM2.5: Hamina 3.6 ug/m3 · Pori 6.1 ug/m3

Source: OpenAQ local exports mapped to AQI Now cities; city summaries cover 2024-01-01–2024-12-31 and 2024-01-29–2024-12-31.

Compare two cities

City A

City B

Kymenlaakso, Finland

EPA category: Good

Satakunta, Finland

EPA category: Good

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

JanFebMarAprMayJunJulAugSepOctNovDec

Hamina

Pori

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.