What is the air quality trend in Tongchuanshi?

Over the past 14 days, Tongchuanshi had an average AQI of 70 based on station measurements. The worst day was 2026-10-08 with AQI 95.

How is Tongchuanshi air quality measured?

Air quality in Tongchuanshi 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 Tongchuanshi, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

325h

PM2.5 Station

325h · 7 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	51	30–74	13.6 µg/m³	21h	5
2026-10-19	68	9–155	20.8 µg/m³	23h	4
2026-10-18	45	25–66	11.5 µg/m³	23h	4
2026-10-17	33	18–56	8.1 µg/m³	24h	4
2026-10-16	84	32–157	27.8 µg/m³	23h	4
2026-10-15	95	22–169	33.9 µg/m³	23h	4
2026-10-14	78	46–172	26.0 µg/m³	23h	3
2026-10-13	62	15–91	18.2 µg/m³	24h	4
2026-10-12	60	36–99	16.8 µg/m³	23h	4
2026-10-11	86	28–173	29.6 µg/m³	23h	4
2026-10-10	65	40–117	19.0 µg/m³	24h	5
2026-10-09	75	43–117	23.8 µg/m³	23h	8
2026-10-08	95	71–122	32.4 µg/m³	24h	31
2026-10-07	87	67–122	29.0 µg/m³	24h	30

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