What is the air quality trend in Nishitawara?

Over the past 15 days, Nishitawara had an average AQI of 32 based on station measurements. The worst day was 2026-05-31 with AQI 52.

How is Nishitawara air quality measured?

Air quality in Nishitawara 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 Nishitawara, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 32 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	30	20–36	7.2 µg/m³	7h	24
2026-06-08	25	20–30	6.1 µg/m³	24h	31
2026-06-07	25	17–34	5.9 µg/m³	24h	33
2026-06-06	34	22–48	8.1 µg/m³	24h	33
2026-06-05	29	22–39	6.9 µg/m³	24h	32
2026-06-04	27	20–45	6.6 µg/m³	24h	30
2026-06-03	26	20–33	6.3 µg/m³	24h	32
2026-06-02	25	18–38	5.9 µg/m³	24h	29
2026-06-01	41	26–59	10.0 µg/m³	24h	25
2026-05-31	52	38–60	13.2 µg/m³	24h	25
2026-05-30	45	35–55	10.9 µg/m³	24h	29
2026-05-29	37	28–45	8.8 µg/m³	24h	27
2026-05-28	33	22–56	7.9 µg/m³	24h	27
2026-05-27	27	18–37	6.5 µg/m³	24h	30
2026-05-26	27	18–32	6.4 µg/m³	16h	30

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