What is the air quality trend in Bibai?

Over the past 8 days, Bibai had an average AQI of 47 based on station measurements. The worst day was 2026-08-29 with AQI 59.

How is Bibai air quality measured?

Air quality in Bibai 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 Bibai, Japan

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

160h

PM2.5 Station

160h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	39	22–67	9.9 µg/m³	10h	5
2026-09-04	37	5–138	10.0 µg/m³	23h	4
2026-09-03	30	9–148	8.0 µg/m³	21h	3
2026-09-02	46	15–147	12.6 µg/m³	24h	3
2026-09-01	57	21–151	17.1 µg/m³	24h	4
2026-08-31	58	17–143	17.0 µg/m³	24h	4
2026-08-30	50	13–109	13.5 µg/m³	23h	4
2026-08-29	59	13–170	21.3 µg/m³	11h	3

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