What is the air quality trend in Nanjō?

Over the past 15 days, Nanjō had an average AQI of 32 based on station measurements. The worst day was 2026-05-31 with AQI 55.

How is Nanjō air quality measured?

Air quality in Nanjō 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 Nanjō, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

287h

PM2.5 Station

287h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	32	21–50	7.6 µg/m³	5h	1
2026-06-08	23	9–63	5.7 µg/m³	23h	2
2026-06-07	27	5–75	6.9 µg/m³	22h	2
2026-06-06	31	10–61	7.7 µg/m³	23h	2
2026-06-05	30	9–57	7.2 µg/m³	23h	2
2026-06-04	29	9–61	7.2 µg/m³	23h	2
2026-06-03	29	13–42	7.0 µg/m³	23h	2
2026-06-02	26	7–68	6.5 µg/m³	21h	2
2026-06-01	41	13–70	10.4 µg/m³	15h	2
2026-05-31	55	23–89	15.2 µg/m³	17h	2
2026-05-30	44	19–63	11.0 µg/m³	20h	2
2026-05-29	40	13–67	10.1 µg/m³	17h	1
2026-05-28	38	13–63	9.5 µg/m³	20h	2
2026-05-27	22	5–44	5.4 µg/m³	23h	2
2026-05-26	24	8–42	5.7 µg/m³	12h	2

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