What is the air quality trend in Saga?

Over the past 8 days, Saga had an average AQI of 52 based on station measurements. The worst day was 2026-07-21 with AQI 58.

How is Saga air quality measured?

Air quality in Saga 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 Saga, Japan

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

Historical PM2.5 and AQI trend from monitoring stations near Saga, Japan.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 35 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	44	44–44	10.5 µg/m³	1h	35
2026-07-21	58	37–75	15.8 µg/m³	24h	18
2026-07-20	55	39–99	14.5 µg/m³	24h	26
2026-07-19	45	33–58	10.9 µg/m³	24h	30
2026-07-18	48	27–75	11.9 µg/m³	24h	32
2026-07-17	55	35–63	14.0 µg/m³	24h	32
2026-07-16	56	44–65	14.5 µg/m³	24h	30
2026-07-15	55	46–63	13.9 µg/m³	21h	31

Back to Saga Air Quality