Sesto San Giovanni vs Sondrio AQI Comparison

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

Lower average AQI: Sondrio (36-pt gap)PM2.5: Sesto San Giovanni 23.0 ug/m3 · Sondrio 17.6 ug/m3

Source: OpenAQ local exports mapped to AQI Now cities; city summaries cover 2024-01-29–2024-12-30 and 2024-01-29–2024-12-30.

Compare two cities

City A

City B

Sesto San Giovanni vs Sondrio

Sesto San Giovanni

Lombardy, Italy

PM2.5: 23.0 ug/m3
PM10: n/a ug/m3
Worst month: January
Trend: n/a

EPA category: Moderate

Sondrio

Lombardy, Italy

PM2.5: 17.6 ug/m3
PM10: 18.8 ug/m3
Worst month: January
Trend: n/a

EPA category: Good

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

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

Sesto San Giovanni

139

101

105

Sondrio

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.