What is the air quality trend in Yongjian?

Over the past 14 days, Yongjian had an average AQI of 66 based on station measurements. The worst day was 2026-06-02 with AQI 80.

How is Yongjian air quality measured?

Air quality in Yongjian 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 Yongjian, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

278h

PM2.5 Station

278h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-08	50	29–93	13.6 µg/m³	18h	2
2026-06-07	56	30–150	15.9 µg/m³	19h	2
2026-06-06	62	30–90	18.1 µg/m³	21h	2
2026-06-05	64	16–106	19.5 µg/m³	17h	2
2026-06-04	70	16–127	21.7 µg/m³	20h	2
2026-06-03	72	31–167	24.7 µg/m³	22h	2
2026-06-02	80	34–132	26.0 µg/m³	18h	2
2026-06-01	76	51–122	23.7 µg/m³	22h	2
2026-05-31	78	29–149	25.0 µg/m³	20h	2
2026-05-30	68	26–97	20.5 µg/m³	21h	2
2026-05-29	73	23–154	23.3 µg/m³	21h	2
2026-05-28	66	37–126	19.4 µg/m³	20h	2
2026-05-27	63	19–87	18.8 µg/m³	20h	2
2026-05-26	57	24–97	15.7 µg/m³	19h	2

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