What is the air quality trend in Tongshan?

Over the past 8 days, Tongshan had an average AQI of 58 based on station measurements. The worst day was 2026-07-21 with AQI 74.

How is Tongshan air quality measured?

Air quality in Tongshan 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 Tongshan, China

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

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

108

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

162h

PM2.5 Station

162h · 5 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	74	52–109	23.2 µg/m³	19h	3
2026-07-20	68	43–115	20.1 µg/m³	23h	4
2026-07-19	67	40–151	20.0 µg/m³	23h	3
2026-07-18	65	40–90	18.9 µg/m³	24h	3
2026-07-17	59	28–112	16.2 µg/m³	23h	4
2026-07-16	50	30–95	12.8 µg/m³	24h	3
2026-07-15	55	30–80	15.3 µg/m³	24h	3
2026-07-14	32	18–46	7.7 µg/m³	2h	2

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