What is the air quality trend in Istanbul?

Over the past 8 days, Istanbul had an average AQI of 75 based on station measurements. The worst day was 2026-06-04 with AQI 88.

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

169h

PM2.5 Station

169h · 26 stations

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	45–104	19.9 µg/m³	40.4	9h	26
2026-06-08	67	48–91	19.8 µg/m³	57.0	24h	28
2026-06-07	76	55–125	23.7 µg/m³	63.1	24h	29
2026-06-06	72	53–138	21.8 µg/m³	55.8	24h	27
2026-06-05	74	58–95	22.9 µg/m³	61.1	24h	28
2026-06-04	88	64–163	30.1 µg/m³	72.4	24h	27
2026-06-03	76	56–102	23.8 µg/m³	69.3	24h	29
2026-06-02	83	64–110	27.1 µg/m³	83.5	16h	28

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