What is the air quality trend in Yoshii?

Over the past 15 days, Yoshii had an average AQI of 34 based on station measurements. The worst day was 2026-05-16 with AQI 40.

How is Yoshii air quality measured?

Air quality in Yoshii 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 Yoshii, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

331h

PM2.5 Station

331h · 19 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	36	24–49	8.7 µg/m³	21h	18
2026-05-28	32	21–45	7.8 µg/m³	24h	18
2026-05-27	35	22–49	8.4 µg/m³	24h	18
2026-05-26	34	15–42	8.3 µg/m³	24h	18
2026-05-25	35	25–49	8.4 µg/m³	24h	18
2026-05-24	37	27–52	8.8 µg/m³	24h	20
2026-05-23	35	29–46	8.4 µg/m³	24h	17
2026-05-22	34	19–44	8.1 µg/m³	24h	17
2026-05-21	32	25–42	7.8 µg/m³	24h	17
2026-05-20	32	20–46	7.8 µg/m³	24h	16
2026-05-19	35	25–50	8.4 µg/m³	24h	16
2026-05-18	38	30–55	9.2 µg/m³	24h	17
2026-05-17	34	22–51	8.3 µg/m³	23h	16
2026-05-16	40	23–58	9.6 µg/m³	21h	17
2026-05-15	34	33–35	8.1 µg/m³	2h	17

Back to Yoshii Air Quality