What is the air quality trend in Chefushan?

Over the past 8 days, Chefushan had an average AQI of 67 based on station measurements. The worst day was 2026-10-15 with AQI 105.

How is Chefushan air quality measured?

Air quality in Chefushan 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 Chefushan, China

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

161h

PM2.5 Station

161h · 5 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	30	30–30	7.2 µg/m³	1h	5
2026-10-20	64	15–124	19.8 µg/m³	24h	3
2026-10-19	69	28–124	20.9 µg/m³	24h	3
2026-10-18	55	26–84	15.5 µg/m³	24h	3
2026-10-17	49	15–78	13.0 µg/m³	24h	3
2026-10-16	71	50–153	21.7 µg/m³	22h	3
2026-10-15	105	34–171	39.4 µg/m³	23h	3
2026-10-14	95	38–149	32.8 µg/m³	19h	2

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