What is the air quality trend in Yunjin?

Over the past 7 days, Yunjin had an average AQI of 71 based on station measurements. The worst day was 2026-10-15 with AQI 92.

How is Yunjin air quality measured?

Air quality in Yunjin 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 Yunjin, China

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

135h

PM2.5 Station

135h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	75	42–137	23.4 µg/m³	19h	3
2026-10-19	58	29–76	16.0 µg/m³	20h	4
2026-10-18	53	21–133	14.5 µg/m³	18h	3
2026-10-17	49	30–70	12.8 µg/m³	17h	3
2026-10-16	87	63–152	28.8 µg/m³	21h	3
2026-10-15	92	42–156	31.7 µg/m³	20h	4
2026-10-14	85	46–134	28.0 µg/m³	20h	3

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