What is the air quality trend in Alba Iulia?

Over the past 14 days, Alba Iulia had an average AQI of 20 based on station measurements. The worst day was 2026-10-07 with AQI 31.

How is Alba Iulia air quality measured?

Air quality in Alba Iulia is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Alba Iulia, Romania

Name: Alba Iulia Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Alba Iulia, Romania.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

279h

PM2.5 Station

279h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	14	5–36	3.5 µg/m³	10h	2
2026-10-20	20	5–51	4.9 µg/m³	23h	2
2026-10-19	21	17–26	5.1 µg/m³	22h	2
2026-10-18	18	15–22	4.2 µg/m³	24h	2
2026-10-17	19	15–23	4.5 µg/m³	23h	1
2026-10-16	20	15–29	4.7 µg/m³	18h	2
2026-10-15	20	15–30	4.8 µg/m³	21h	2
2026-10-14	18	14–23	4.4 µg/m³	24h	2
2026-10-13	14	10–21	3.5 µg/m³	23h	2
2026-10-12	18	13–24	4.3 µg/m³	9h	2
2026-10-10	19	15–29	4.6 µg/m³	21h	2
2026-10-09	22	15–29	5.2 µg/m³	23h	2
2026-10-08	28	16–41	6.7 µg/m³	24h	2
2026-10-07	31	21–46	7.4 µg/m³	14h	2

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