What is the air quality trend in Kashihara-shi?

Over the past 8 days, Kashihara-shi had an average AQI of 64 based on station measurements. The worst day was 2026-10-14 with AQI 87.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 64 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	42	33–69	10.6 µg/m³	7h	62
2026-10-20	51	32–75	13.3 µg/m³	24h	59
2026-10-19	61	40–86	17.3 µg/m³	24h	54
2026-10-18	43	29–79	10.8 µg/m³	24h	59
2026-10-17	66	39–134	19.6 µg/m³	24h	58
2026-10-16	76	41–154	24.1 µg/m³	24h	47
2026-10-15	87	45–157	29.0 µg/m³	24h	60
2026-10-14	87	30–155	29.5 µg/m³	14h	46

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