What is the air quality trend in Tonggu?

Over the past 8 days, Tonggu had an average AQI of 67 based on station measurements. The worst day was 2026-10-15 with AQI 98.

How is Tonggu air quality measured?

Air quality in Tonggu 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 Tonggu, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

105h

PM2.5 Station

105h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	67	39–85	20.2 µg/m³	7h	3
2026-10-20	56	15–94	16.2 µg/m³	16h	3
2026-10-19	60	18–91	17.0 µg/m³	13h	4
2026-10-18	53	25–153	15.0 µg/m³	14h	2
2026-10-17	52	20–114	13.9 µg/m³	19h	3
2026-10-16	86	50–155	28.3 µg/m³	16h	3
2026-10-15	98	46–152	33.8 µg/m³	15h	3
2026-10-14	69	42–89	20.9 µg/m³	5h	3

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