What is the air quality trend in Istanbul?

Over the past 8 days, Istanbul had an average AQI of 78 based on station measurements. The worst day was 2026-06-04 with AQI 90.

How is Istanbul air quality measured?

Air quality in Istanbul 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 Istanbul, Turkey

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-06-09	67	40–90	20.3 µg/m³	46.8	10h	23
2026-06-08	70	53–105	21.1 µg/m³	57.0	24h	26
2026-06-07	85	52–160	28.7 µg/m³	63.1	24h	28
2026-06-06	73	53–144	22.5 µg/m³	55.8	24h	26
2026-06-05	78	61–118	25.0 µg/m³	61.1	24h	27
2026-06-04	90	60–166	31.2 µg/m³	72.4	24h	25
2026-06-03	77	57–108	24.5 µg/m³	69.3	24h	26
2026-06-02	85	67–111	28.0 µg/m³	84.2	14h	28

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