What is the air quality trend in Bolu?

Over the past 15 days, Bolu had an average AQI of 45 based on station measurements. The worst day was 2026-07-22 with AQI 58.

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

269h

PM2.5 Station

269h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	58	29–86	16.6 µg/m³	4h	2
2026-07-21	40	8–74	10.2 µg/m³	22h	3
2026-07-20	42	13–110	11.7 µg/m³	22h	2
2026-07-19	43	2–114	11.5 µg/m³	16h	2
2026-07-18	49	10–127	13.8 µg/m³	19h	2
2026-07-17	49	32–85	12.8 µg/m³	19h	2
2026-07-16	52	1–165	15.9 µg/m³	17h	2
2026-07-15	51	28–76	13.2 µg/m³	16h	2
2026-07-14	49	10–91	13.6 µg/m³	20h	2
2026-07-13	39	8–104	10.6 µg/m³	20h	2
2026-07-12	34	15–81	8.6 µg/m³	19h	2
2026-07-11	39	17–80	9.8 µg/m³	19h	2
2026-07-10	51	16–113	13.7 µg/m³	21h	2
2026-07-09	42	14–70	10.6 µg/m³	21h	2
2026-07-08	37	19–64	9.1 µg/m³	14h	2

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