What is the air quality trend in Miharu?

Over the past 21 days, Miharu had an average AQI of 32 based on station measurements. The worst day was 2026-05-16 with AQI 42.

How is Miharu air quality measured?

Air quality in Miharu 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 Miharu, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

370h

PM2.5 Station

370h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	33	13–57	8.1 µg/m³	6h	2
2026-05-29	38	1–72	9.7 µg/m³	16h	1
2026-05-28	33	7–56	8.0 µg/m³	20h	1
2026-05-27	34	7–64	8.4 µg/m³	19h	1
2026-05-26	35	12–71	8.9 µg/m³	20h	1
2026-05-25	39	22–80	9.7 µg/m³	18h	1
2026-05-24	39	9–102	10.5 µg/m³	21h	1
2026-05-23	39	17–55	9.5 µg/m³	17h	1
2026-05-22	35	2–80	8.8 µg/m³	17h	2
2026-05-21	30	5–65	7.6 µg/m³	16h	1
2026-05-20	30	8–70	7.5 µg/m³	22h	1
2026-05-19	26	5–76	6.9 µg/m³	17h	1
2026-05-18	26	12–63	6.5 µg/m³	20h	1
2026-05-17	26	10–50	6.4 µg/m³	15h	1
2026-05-16	42	15–69	10.6 µg/m³	16h	1
2026-05-15	33	9–59	8.3 µg/m³	21h	1
2026-05-14	39	11–63	9.7 µg/m³	18h	1
2026-05-13	25	4–53	6.0 µg/m³	19h	1
2026-05-12	31	9–56	7.4 µg/m³	19h	1
2026-05-11	28	4–59	6.9 µg/m³	22h	1
2026-05-10	31	8–54	7.4 µg/m³	11h	2

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