What is the air quality trend in Tongzhou?

Over the past 8 days, Tongzhou had an average AQI of 74 based on station measurements. The worst day was 2026-06-01 with AQI 99.

How is Tongzhou air quality measured?

Air quality in Tongzhou 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 Tongzhou, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 22 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-08	57	35–71	15.1 µg/m³	21h	22
2026-06-07	58	45–72	15.6 µg/m³	24h	23
2026-06-06	63	36–82	18.1 µg/m³	24h	23
2026-06-05	77	64–134	24.2 µg/m³	24h	24
2026-06-04	71	62–85	21.6 µg/m³	24h	23
2026-06-03	78	58–114	25.1 µg/m³	24h	23
2026-06-02	94	80–112	32.4 µg/m³	24h	23
2026-06-01	99	95–103	34.6 µg/m³	2h	23

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