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Croatia AQI Analytics

OpenAQ-derived PM2.5 and PM10 history for 17 cities, mapped to AQI Now city pages and normalized to the US EPA AQI scale.

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Cities
17

with OpenAQ history

Locations
25

mapped monitors

Daily rows
3,086

2024-01-01 to 2024-12-31

Avg EPA AQI
48

15.6 ug/m3 PM2.5

Current data story

The highest average AQI in this pilot slice is Zagreb, with an EPA AQI average of 92 and PM2.5 around 47.4 ug/m3. Its worst month is December.

Source: OpenAQ local parquet plus raw CSV coordinate recovery. Build 2026-05-12T00:27:56.105574+00:00.

Country average
48
US EPA scale
PM2.5 15.6 ug/m3 · PM10 19.3 ug/m3

Analytics tools

Cities ranked by average AQI

CityAvg AQIPM2.5Worst monthTrendCoverage
Zagreb
Zagreb, Grad, Croatia
9247.4 ug/m3Decembern/a70 days · 3 locations
Ðakovo
Osječko-Baranjska Županija, Croatia
8830.7 ug/m3Decembern/a154 days · 1 locations
Zabok
Krapinsko-Zagorska Županija, Croatia
8025.8 ug/m3Decembern/a73 days · 2 locations
Zagreb
Zagreb, Croatia
7724.6 ug/m3Decembern/a285 days · 1 locations
Kutina
Sisačko-Moslavačka Županija, Croatia
6421.2 ug/m3Februaryn/a219 days · 2 locations
Nedelišće
Međimurska Županija, Croatia
6217.7 ug/m3Novembern/a154 days · 1 locations
Koprivnica
Koprivničko-Križevačka Županija, Croatia
5815.8 ug/m3Januaryn/a188 days · 2 locations
Krapina
Krapinsko-Zagorska Županija, Croatia
5213.4 ug/m3Novembern/a216 days · 1 locations
Rijeka
Zagreb, Croatia
4510.1 ug/m3Augustn/a355 days · 2 locations
Osijek
Osječko-Baranjska Županija, Croatia
4011.6 ug/m3Decembern/a275 days · 3 locations
Benkovac
Zadarska Županija, Croatia
326.5 ug/m3Augustn/a190 days · 1 locations
Gospić
Ličko-Senjska Županija, Croatia
306.0 ug/m3Augustn/a220 days · 1 locations
Poreč
Istarska Županija, Croatia
296.7 ug/m3Februaryn/a213 days · 1 locations
Križevci
Koprivničko-Križevačka Županija, Croatia
286.1 ug/m3Novembern/a148 days · 1 locations
Petrinja
Sisačko-Moslavačka Županija, Croatia
214.1 ug/m3Novembern/a154 days · 1 locations
Split
Splitsko-Dalmatinska Županija, Croatia
14n/a ug/m3Novembern/a53 days · 1 locations
Garešnica
Bjelovarsko-Bilogorska Županija, Croatia
122.1 ug/m3Novembern/a119 days · 1 locations

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