What is the air quality trend in Yamaga?

Over the past 15 days, Yamaga had an average AQI of 40 based on station measurements. The worst day was 2026-08-01 with AQI 51.

How is Yamaga air quality measured?

Air quality in Yamaga 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 Yamaga, Japan

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

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

Current AQI
Good CAMS model

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
2026-08-08	29	20–35	6.9 µg/m³	7h	18
2026-08-07	30	23–57	7.4 µg/m³	22h	17
2026-08-06	48	26–74	12.5 µg/m³	24h	8
2026-08-05	46	23–68	11.4 µg/m³	24h	8
2026-08-04	43	27–66	10.4 µg/m³	24h	13
2026-08-03	41	23–65	10.1 µg/m³	24h	14
2026-08-02	46	32–58	11.2 µg/m³	24h	14
2026-08-01	51	40–61	12.8 µg/m³	24h	15
2026-07-31	50	39–59	12.3 µg/m³	24h	15
2026-07-30	49	35–59	12.2 µg/m³	24h	15
2026-07-29	35	26–49	8.4 µg/m³	24h	13
2026-07-28	36	26–49	8.7 µg/m³	24h	14
2026-07-27	38	23–46	9.1 µg/m³	24h	15
2026-07-26	37	24–52	8.8 µg/m³	24h	15
2026-07-25	35	25–51	8.4 µg/m³	14h	14

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