What is the air quality trend in Nagareyama?

Over the past 17 days, Nagareyama had an average AQI of 38 based on station measurements. The worst day was with AQI .

How is Nagareyama air quality measured?

Air quality in Nagareyama 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 Nagareyama, Japan

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

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

Current AQI
Moderate

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

329h · 1 station

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-11	54	18–60	14.2 µg/m³	20.5	12h	12
2026-04-10	41	19–64	10.4 µg/m³	17.4	24h	11
2026-04-09	31	13–42	7.5 µg/m³	13.3	18h	11
2026-04-08	36	27–44	8.6 µg/m³	10.0	9h	11
2026-04-07	29	7–63	7.1 µg/m³	10.8	24h	10
2026-04-06	53	41–62	13.5 µg/m³	20.0	18h	12
2026-04-04	40	21–60	10.0 µg/m³	15.9	15h	11
2026-04-03	36	26–55	8.8 µg/m³	11.9	24h	12
2026-04-02	18	6–32	4.4 µg/m³	6.0	24h	10
2026-04-01	18	7–31	4.3 µg/m³	5.7	23h	9
2026-03-31	26	4–41	6.3 µg/m³	10.9	24h	10
2026-03-30	43	24–113	12.5 µg/m³	18.6	11h	10
2026-03-29	65	49–75	18.8 µg/m³	25.2	24h	11
2026-03-28	59	39–119	16.1 µg/m³	21.9	24h	10
2026-03-27	36	23–46	8.6 µg/m³	12.1	24h	12
2026-03-26	27	17–37	6.6 µg/m³	8.2	24h	11
2026-03-25	44	37–52	10.6 µg/m³	13.1	7h	13

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