What is the air quality trend in Sitou?

Over the past 8 days, Sitou had an average AQI of 71 based on station measurements. The worst day was 2026-10-15 with AQI 120.

How is Sitou air quality measured?

Air quality in Sitou 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 Sitou, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 6 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	27	21–34	6.6 µg/m³	3h	6
2026-10-20	68	18–136	21.0 µg/m³	24h	7
2026-10-19	78	55–111	24.7 µg/m³	24h	6
2026-10-18	50	25–84	13.5 µg/m³	24h	6
2026-10-17	52	25–75	13.9 µg/m³	24h	6
2026-10-16	77	45–163	25.2 µg/m³	24h	5
2026-10-15	120	37–162	44.6 µg/m³	24h	6
2026-10-14	102	68–149	35.5 µg/m³	19h	5

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