What is the air quality trend in Yidu?

Over the past 8 days, Yidu had an average AQI of 72 based on station measurements. The worst day was 2026-10-15 with AQI 115.

How is Yidu air quality measured?

Air quality in Yidu 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 Yidu, China

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

Historical PM2.5 and AQI trend from monitoring stations near Yidu, China.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 12 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	39	36–42	9.3 µg/m³	2h	10
2026-10-20	70	21–102	22.1 µg/m³	24h	10
2026-10-19	72	52–105	22.2 µg/m³	24h	8
2026-10-18	53	27–77	14.1 µg/m³	24h	8
2026-10-17	53	32–71	13.9 µg/m³	24h	10
2026-10-16	77	55–156	24.6 µg/m³	24h	7
2026-10-15	115	77–163	41.9 µg/m³	24h	8
2026-10-14	101	72–129	35.4 µg/m³	19h	7

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