What is the air quality trend in Kashihara-shi?

Over the past 8 days, Kashihara-shi had an average AQI of 69 based on station measurements. The worst day was 2026-10-14 with AQI 98.

How is Kashihara-shi air quality measured?

Air quality in Kashihara-shi 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 Kashihara-shi, Japan

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

Historical PM2.5 and AQI trend from monitoring stations near Kashihara-shi, Japan.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 60 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	52	31–92	15.0 µg/m³	12h	46
2026-10-20	61	36–107	17.2 µg/m³	24h	44
2026-10-19	63	35–91	17.9 µg/m³	24h	42
2026-10-18	56	26–128	15.8 µg/m³	24h	44
2026-10-17	65	38–92	19.1 µg/m³	24h	43
2026-10-16	71	48–102	21.4 µg/m³	24h	39
2026-10-15	88	50–149	29.3 µg/m³	24h	44
2026-10-14	98	46–152	33.5 µg/m³	10h	39

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