What is the air quality trend in Tianchang?

Over the past 8 days, Tianchang had an average AQI of 75 based on station measurements. The worst day was 2026-10-15 with AQI 128.

How is Tianchang air quality measured?

Air quality in Tianchang 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 Tianchang, China

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

161h

PM2.5 Station

161h · 6 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	32	32–32	7.7 µg/m³	1h	6
2026-10-20	73	25–123	23.2 µg/m³	23h	5
2026-10-19	74	48–124	23.0 µg/m³	24h	5
2026-10-18	50	31–68	12.8 µg/m³	24h	5
2026-10-17	49	21–71	12.2 µg/m³	24h	5
2026-10-16	87	35–166	29.6 µg/m³	22h	4
2026-10-15	128	72–155	47.8 µg/m³	23h	5
2026-10-14	108	53–207	41.7 µg/m³	20h	5

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