What is the air quality trend in Yunshan?

Over the past 7 days, Yunshan had an average AQI of 66 based on station measurements. The worst day was 2026-05-22 with AQI 78.

How is Yunshan air quality measured?

Air quality in Yunshan 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 Yunshan, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

155h

PM2.5 Station

155h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-28	62	34–100	18.0 µg/m³	21h	2
2026-05-27	71	42–112	21.9 µg/m³	22h	2
2026-05-26	66	16–122	19.9 µg/m³	22h	2
2026-05-25	55	16–131	15.9 µg/m³	24h	2
2026-05-24	65	46–93	18.7 µg/m³	21h	2
2026-05-23	71	13–113	22.0 µg/m³	23h	2
2026-05-22	78	31–127	25.1 µg/m³	22h	2

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