What is the air quality trend in Bolu?

Over the past 8 days, Bolu had an average AQI of 67 based on station measurements. The worst day was 2026-07-14 with AQI 235.

How is Bolu air quality measured?

Air quality in Bolu 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 Bolu, Turkey

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

Historical PM2.5 and AQI trend from monitoring stations near Bolu, Turkey.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

151h

PM2.5 Station

151h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	37	8–81	9.4 µg/m³	20h	3
2026-07-20	34	6–87	8.9 µg/m³	23h	3
2026-07-19	40	7–76	10.0 µg/m³	22h	2
2026-07-18	49	8–184	16.0 µg/m³	22h	2
2026-07-17	50	6–159	14.6 µg/m³	21h	2
2026-07-16	46	12–86	12.3 µg/m³	22h	2
2026-07-15	48	18–67	12.2 µg/m³	20h	2
2026-07-14	235	235–235	185.1 µg/m³	1h	2

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