Bystrc vs Liberec AQI Comparison

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

Lower average AQI: Liberec (27-pt gap)PM2.5: Bystrc 21.7 ug/m3 · Liberec 10.2 ug/m3

Source: OpenAQ local exports mapped to AQI Now cities; city summaries cover 2024-06-06–2024-12-24 and 2024-01-01–2024-12-31.

Compare two cities

City A

City B

Bystrc vs Liberec

Bystrc

Jihomoravský Kraj, Czech Republic

PM2.5: 21.7 ug/m3
PM10: 23.9 ug/m3
Worst month: November
Trend: n/a

EPA category: Moderate

Liberec

Liberecký Kraj, Czech Republic

PM2.5: 10.2 ug/m3
PM10: 14.1 ug/m3
Worst month: March
Trend: n/a

EPA category: Good

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

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

Bystrc

100

Liberec

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.