What is the air quality trend in Chengqiao?

Over the past 8 days, Chengqiao had an average AQI of 70 based on station measurements. The worst day was 2026-10-15 with AQI 99.

How is Chengqiao air quality measured?

Air quality in Chengqiao 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 Chengqiao, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

164h

PM2.5 Station

164h · 21 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	49	40–61	12.4 µg/m³	7h	19
2026-10-20	72	25–104	22.5 µg/m³	24h	17
2026-10-19	67	56–86	19.9 µg/m³	24h	16
2026-10-18	56	38–75	15.1 µg/m³	24h	19
2026-10-17	54	35–71	14.3 µg/m³	24h	17
2026-10-16	73	56–110	22.5 µg/m³	23h	18
2026-10-15	99	79–123	34.4 µg/m³	24h	16
2026-10-14	91	64–121	31.0 µg/m³	14h	11

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