What is the air quality trend in Tianchang?

Over the past 7 days, Tianchang had an average AQI of 78 based on station measurements. The worst day was 2026-10-15 with AQI 125.

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 · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	79	8–125	26.3 µg/m³	23h	6
2026-10-19	73	47–107	22.7 µg/m³	24h	6
2026-10-18	50	32–64	12.9 µg/m³	24h	6
2026-10-17	50	20–69	12.8 µg/m³	24h	5
2026-10-16	78	29–161	25.9 µg/m³	22h	4
2026-10-15	125	80–159	46.7 µg/m³	23h	5
2026-10-14	97	64–149	33.2 µg/m³	21h	6

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