What is the air quality trend in Ruse?

Over the past 15 days, Ruse had an average AQI of 86 based on station measurements. The worst day was 2026-05-28 with AQI 99.

How is Ruse air quality measured?

Air quality in Ruse 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 Ruse, Bulgaria

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

Historical PM2.5 and AQI trend from monitoring stations near Ruse, Bulgaria.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

331h

PM2.5 Station

331h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	78	78–78	24.7 µg/m³	33.6	1h	2
2026-05-29	85	73–108	28.1 µg/m³	38.3	22h	1
2026-05-28	99	13–186	36.7 µg/m³	49.8	23h	2
2026-05-27	91	74–117	31.0 µg/m³	42.4	24h	1
2026-05-26	98	74–156	33.9 µg/m³	46.1	24h	1
2026-05-25	85	74–115	28.0 µg/m³	38.1	24h	1
2026-05-24	92	73–131	31.5 µg/m³	43.1	24h	2
2026-05-23	85	73–108	28.2 µg/m³	38.4	24h	1
2026-05-22	85	5–127	28.5 µg/m³	40.4	23h	1
2026-05-21	81	72–95	26.2 µg/m³	35.7	24h	2
2026-05-20	84	73–118	27.8 µg/m³	37.8	24h	2
2026-05-19	81	29–129	26.5 µg/m³	35.9	24h	1
2026-05-18	78	73–86	24.9 µg/m³	33.7	24h	2
2026-05-17	81	71–99	26.5 µg/m³	36.0	24h	1
2026-05-16	96	78–151	33.1 µg/m³	45.0	22h	1

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