What is the air quality trend in Agano?

Over the past 21 days, Agano had an average AQI of 31 based on station measurements. The worst day was 2026-05-31 with AQI 51.

How is Agano air quality measured?

Air quality in Agano 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 Agano, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

476h

PM2.5 Station

476h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	21	20–23	5.1 µg/m³	3h	3
2026-06-08	28	12–56	6.8 µg/m³	24h	4
2026-06-07	25	9–51	6.0 µg/m³	24h	4
2026-06-06	31	9–59	7.5 µg/m³	24h	4
2026-06-05	29	5–46	7.0 µg/m³	24h	4
2026-06-04	28	15–49	6.6 µg/m³	24h	3
2026-06-03	25	10–41	6.0 µg/m³	24h	4
2026-06-02	27	10–55	6.5 µg/m³	24h	4
2026-06-01	40	15–63	10.0 µg/m³	24h	3
2026-05-31	51	35–66	12.9 µg/m³	24h	4
2026-05-30	43	23–59	10.6 µg/m³	23h	4
2026-05-29	34	17–58	8.4 µg/m³	24h	3
2026-05-28	36	5–85	9.2 µg/m³	24h	3
2026-05-27	29	6–52	6.8 µg/m³	24h	3
2026-05-26	29	9–52	7.0 µg/m³	24h	4
2026-05-25	33	21–52	7.9 µg/m³	23h	3
2026-05-24	36	17–60	8.8 µg/m³	24h	3
2026-05-23	33	18–49	7.9 µg/m³	24h	3
2026-05-22	28	12–52	6.8 µg/m³	24h	3
2026-05-21	29	12–60	7.1 µg/m³	23h	3
2026-05-20	31	13–44	7.5 µg/m³	20h	3

Back to Agano Air Quality