What is the air quality trend in Shiyan?

Over the past 8 days, Shiyan had an average AQI of 67 based on station measurements. The worst day was 2026-05-22 with AQI 112.

How is Shiyan air quality measured?

Air quality in Shiyan 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 Shiyan, China

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

105h

PM2.5 Station

105h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	53	27–87	14.3 µg/m³	17h	1
2026-05-28	74	42–117	22.9 µg/m³	14h	1
2026-05-27	65	30–102	19.3 µg/m³	14h	1
2026-05-26	51	30–80	13.9 µg/m³	15h	2
2026-05-25	56	31–84	15.6 µg/m³	15h	1
2026-05-24	52	13–80	14.0 µg/m³	17h	1
2026-05-23	78	25–137	24.8 µg/m³	12h	2
2026-05-22	112	112–112	40.0 µg/m³	1h	1

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