What is the air quality trend in Kobayashi?

Over the past 21 days, Kobayashi had an average AQI of 43 based on station measurements. The worst day was 2026-07-22 with AQI 59.

How is Kobayashi air quality measured?

Air quality in Kobayashi 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 Kobayashi, Japan

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

459h

PM2.5 Station

459h · 6 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	30	22–44	7.1 µg/m³	6h	4
2026-08-07	28	13–54	6.8 µg/m³	21h	4
2026-08-06	40	9–88	10.2 µg/m³	19h	2
2026-08-05	50	23–81	13.1 µg/m³	21h	2
2026-08-04	43	25–62	10.4 µg/m³	21h	4
2026-08-03	44	17–70	11.1 µg/m³	24h	3
2026-08-02	42	11–67	10.5 µg/m³	24h	4
2026-08-01	54	35–68	14.0 µg/m³	24h	4
2026-07-31	48	33–65	12.1 µg/m³	24h	4
2026-07-30	47	23–74	11.9 µg/m³	24h	4
2026-07-29	37	9–54	9.0 µg/m³	24h	3
2026-07-28	32	9–55	7.6 µg/m³	24h	4
2026-07-27	33	11–66	8.1 µg/m³	24h	4
2026-07-26	33	16–54	8.0 µg/m³	24h	4
2026-07-25	43	5–76	10.9 µg/m³	24h	4
2026-07-24	47	4–64	12.0 µg/m³	24h	4
2026-07-23	49	22–68	12.7 µg/m³	24h	4
2026-07-22	59	29–77	16.3 µg/m³	24h	4
2026-07-21	54	25–84	14.4 µg/m³	21h	3
2026-07-20	55	38–84	14.9 µg/m³	23h	3
2026-07-19	42	18–63	10.5 µg/m³	15h	4

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