What is the air quality trend in Sitou?

Over the past 15 days, Sitou had an average AQI of 65 based on station measurements. The worst day was 2026-05-23 with AQI 79.

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

329h

PM2.5 Station

329h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	69	42–85	20.9 µg/m³	22h	3
2026-05-28	62	42–85	17.5 µg/m³	24h	3
2026-05-27	67	48–101	19.9 µg/m³	24h	3
2026-05-26	56	19–97	15.5 µg/m³	24h	4
2026-05-25	62	32–204	21.0 µg/m³	24h	3
2026-05-24	69	38–105	20.8 µg/m³	24h	3
2026-05-23	79	38–120	25.3 µg/m³	24h	4
2026-05-22	71	40–104	21.7 µg/m³	24h	3
2026-05-21	74	38–119	23.1 µg/m³	23h	3
2026-05-20	68	36–111	20.1 µg/m³	24h	3
2026-05-19	65	47–86	18.7 µg/m³	24h	4
2026-05-18	60	46–73	16.6 µg/m³	24h	3
2026-05-17	62	37–103	17.6 µg/m³	23h	4
2026-05-16	65	24–98	19.1 µg/m³	20h	4
2026-05-15	58	58–58	15.4 µg/m³	1h	5

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