What is the air quality trend in Tongjing?

Over the past 8 days, Tongjing had an average AQI of 67 based on station measurements. The worst day was 2026-10-15 with AQI 97.

How is Tongjing air quality measured?

Air quality in Tongjing 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 Tongjing, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

164h

PM2.5 Station

164h · 12 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	37	37–37	8.8 µg/m³	1h	12
2026-10-20	65	34–93	18.9 µg/m³	24h	17
2026-10-19	65	48–78	18.9 µg/m³	24h	17
2026-10-18	52	35–71	13.8 µg/m³	24h	15
2026-10-17	49	26–75	12.5 µg/m³	24h	16
2026-10-16	78	49–138	24.9 µg/m³	23h	18
2026-10-15	97	43–156	33.9 µg/m³	24h	16
2026-10-14	93	74–153	31.8 µg/m³	20h	15

Back to Tongjing Air Quality