What is the air quality trend in Sitou?

Over the past 14 days, Sitou had an average AQI of 60 based on station measurements. The worst day was 2026-07-21 with AQI 70.

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
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

330h

PM2.5 Station

330h · 6 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	70	51–119	20.9 µg/m³	22h	5
2026-07-20	69	42–107	20.8 µg/m³	24h	5
2026-07-19	68	38–96	20.3 µg/m³	24h	5
2026-07-18	68	46–137	20.0 µg/m³	24h	5
2026-07-17	59	42–71	15.9 µg/m³	24h	4
2026-07-16	59	23–87	16.2 µg/m³	23h	5
2026-07-15	49	18–73	12.8 µg/m³	24h	4
2026-07-14	47	22–86	12.2 µg/m³	24h	5
2026-07-13	59	38–88	16.3 µg/m³	24h	5
2026-07-12	61	23–110	17.4 µg/m³	24h	4
2026-07-11	61	33–84	17.6 µg/m³	24h	5
2026-07-10	60	36–93	16.9 µg/m³	23h	5
2026-07-09	59	38–80	16.2 µg/m³	23h	5
2026-07-08	56	30–92	15.3 µg/m³	23h	5

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