What is the air quality trend in Settsu?

Over the past 14 days, Settsu had an average AQI of 40 based on station measurements. The worst day was 2026-05-16 with AQI 55.

How is Settsu air quality measured?

Air quality in Settsu 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 Settsu, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

331h

PM2.5 Station

331h · 58 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-28	35	22–58	8.6 µg/m³	23h	67
2026-05-27	28	18–40	6.6 µg/m³	24h	70
2026-05-26	32	21–46	7.6 µg/m³	24h	67
2026-05-25	36	23–52	8.7 µg/m³	24h	61
2026-05-24	37	28–56	9.1 µg/m³	24h	66
2026-05-23	35	26–50	8.3 µg/m³	24h	67
2026-05-22	32	20–47	7.6 µg/m³	24h	68
2026-05-21	39	23–58	9.5 µg/m³	24h	67
2026-05-20	36	26–48	8.6 µg/m³	24h	74
2026-05-19	43	35–56	10.4 µg/m³	24h	73
2026-05-18	53	45–68	13.4 µg/m³	24h	67
2026-05-17	53	45–78	13.3 µg/m³	23h	74
2026-05-16	55	47–63	14.1 µg/m³	21h	67
2026-05-15	53	45–58	13.3 µg/m³	24h	60

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