What is the air quality trend in Chongqing?

Over the past 8 days, Chongqing had an average AQI of 67 based on station measurements. The worst day was 2026-10-15 with AQI 91.

How is Chongqing air quality measured?

Air quality in Chongqing 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 Chongqing, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

164h

PM2.5 Station

164h · 26 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	53	50–57	13.0 µg/m³	3h	26
2026-10-20	64	32–88	18.8 µg/m³	24h	29
2026-10-19	65	54–77	18.9 µg/m³	24h	29
2026-10-18	53	35–82	13.9 µg/m³	24h	24
2026-10-17	46	19–74	11.7 µg/m³	24h	26
2026-10-16	79	40–119	25.3 µg/m³	23h	27
2026-10-15	91	32–141	30.9 µg/m³	24h	27
2026-10-14	88	59–133	29.6 µg/m³	18h	26

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