What is the air quality trend in Budapest XXI. kerület?

Over the past 8 days, Budapest XXI. kerület had an average AQI of 71 based on station measurements. The worst day was 2026-10-21 with AQI 91.

How is Budapest XXI. kerület air quality measured?

Air quality in Budapest XXI. kerület 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 Budapest XXI. kerület, Hungary

Name: Budapest XXI. kerület Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Budapest XXI. kerület, Hungary.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	91	72–105	30.8 µg/m³	34.0	14h	2
2026-10-20	66	39–96	19.8 µg/m³	21.6	24h	2
2026-10-19	81	45–113	26.2 µg/m³	28.9	24h	2
2026-10-18	82	45–118	26.7 µg/m³	29.6	24h	2
2026-10-17	79	20–134	26.0 µg/m³	29.7	24h	2
2026-10-16	54	7–101	16.2 µg/m³	18.2	24h	2
2026-10-15	58	18–91	17.3 µg/m³	19.0	24h	2
2026-10-14	64	47–83	18.3 µg/m³	19.3	10h	2

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