What is the air quality trend in Morohongō?

Over the past 8 days, Morohongō had an average AQI of 42 based on station measurements. The worst day was 2026-10-16 with AQI 51.

How is Morohongō air quality measured?

Air quality in Morohongō 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 Morohongō, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 64 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	33	27–47	7.9 µg/m³	11.3	10h	54
2026-10-20	44	32–66	10.9 µg/m³	21.1	24h	56
2026-10-19	48	30–83	12.0 µg/m³	13.5	24h	56
2026-10-18	35	27–47	8.4 µg/m³	9.8	24h	58
2026-10-17	41	31–59	10.0 µg/m³	11.5	24h	54
2026-10-16	51	34–68	13.0 µg/m³	15.4	24h	53
2026-10-15	46	34–55	11.0 µg/m³	12.4	24h	54
2026-10-14	42	28–83	11.1 µg/m³	6.2	12h	53

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