What is the air quality trend in Okazaki?

Over the past 15 days, Okazaki had an average AQI of 32 based on station measurements. The worst day was 2026-05-31 with AQI 53.

How is Okazaki air quality measured?

Air quality in Okazaki 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 Okazaki, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 41 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-06-09	27	23–30	6.4 µg/m³	6.6	3h	55
2026-06-08	24	20–28	5.9 µg/m³	6.9	24h	52
2026-06-07	26	19–34	6.1 µg/m³	8.8	24h	54
2026-06-06	33	27–42	7.9 µg/m³	14.2	24h	57
2026-06-05	30	25–35	7.2 µg/m³	14.4	24h	58
2026-06-04	27	21–32	6.4 µg/m³	7.7	24h	52
2026-06-03	26	15–36	6.2 µg/m³	8.1	24h	53
2026-06-02	25	16–35	5.9 µg/m³	6.8	24h	50
2026-06-01	41	17–57	10.1 µg/m³	13.4	24h	44
2026-05-31	53	46–68	13.4 µg/m³	16.6	24h	45
2026-05-30	42	37–50	10.1 µg/m³	11.0	24h	48
2026-05-29	36	29–62	8.8 µg/m³	8.7	24h	44
2026-05-28	30	23–51	7.3 µg/m³	7.5	24h	45
2026-05-27	30	20–38	7.1 µg/m³	7.6	24h	49
2026-05-26	30	22–36	7.1 µg/m³	8.6	20h	46

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