What is the air quality trend in Shiwan?

Over the past 8 days, Shiwan had an average AQI of 75 based on station measurements. The worst day was 2026-10-14 with AQI 94.

How is Shiwan air quality measured?

Air quality in Shiwan 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 Shiwan, China

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

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

121

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 74 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	89	82–96	30.2 µg/m³	3h	67
2026-10-20	68	59–80	20.1 µg/m³	24h	60
2026-10-19	64	57–71	18.2 µg/m³	24h	53
2026-10-18	56	51–64	14.3 µg/m³	24h	64
2026-10-17	61	45–78	17.1 µg/m³	24h	56
2026-10-16	81	68–115	26.4 µg/m³	23h	51
2026-10-15	93	78–116	32.0 µg/m³	24h	48
2026-10-14	94	75–115	32.4 µg/m³	19h	39

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