Veľký Krtíš vs Žiar nad Hronom AQI Comparison

Side-by-side OpenAQ-derived air quality comparison for Veľký Krtíš and Žiar nad Hronom. Values use mapped daily PM2.5 and PM10 observations normalized to US EPA AQI.

Lower average AQI: Žiar nad Hronom (25-pt gap)PM2.5: Veľký Krtíš 20.9 ug/m3 · Žiar nad Hronom 10.5 ug/m3

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

Compare two cities

City A

City B

Veľký Krtíš vs Žiar nad Hronom

Veľký Krtíš

Banská Bystrica, Slovakia

PM2.5: 20.9 ug/m3
PM10: 26.8 ug/m3
Worst month: January
Trend: n/a

EPA category: Moderate

Žiar nad Hronom

Banská Bystrica, Slovakia

PM2.5: 10.5 ug/m3
PM10: 16.0 ug/m3
Worst month: December
Trend: n/a

EPA category: Good

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

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

Veľký Krtíš

130

103

115

Žiar nad Hronom

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.