What is the air quality trend in Istanbul?

Over the past 14 days, Istanbul had an average AQI of 64 based on station measurements. The worst day was with AQI .

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

48 Hours 7 Days 14 Days 20 Days

Air Quality Index Trend

250h

PM2.5 Trend

250h · 5 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-12	48	19–55	11.7 µg/m³	21.3	16h	6
2026-04-11	55	28–68	14.3 µg/m³	22.6	24h	6
2026-04-10	49	34–60	12.2 µg/m³	17.0	24h	6
2026-04-09	52	46–56	13.0 µg/m³	22.3	15h	6
2026-04-08	82	72–95	27.0 µg/m³	41.4	9h	6
2026-04-07	75	62–102	23.5 µg/m³	38.6	24h	7
2026-04-06	82	71–91	26.7 µg/m³	46.6	17h	7
2026-04-04	70	65–79	20.9 µg/m³	31.4	15h	6
2026-04-03	62	56–75	17.4 µg/m³	27.6	24h	6
2026-04-02	71	61–87	21.6 µg/m³	33.8	21h	7
2026-04-01	66	58–84	19.2 µg/m³	31.1	21h	7
2026-03-31	67	58–78	19.6 µg/m³	31.0	21h	7
2026-03-30	65	56–77	18.5 µg/m³	25.2	11h	5
2026-03-29	59	56–68	16.1 µg/m³	24.4	8h	6

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