What is the air quality trend in Chongming?

Over the past 21 days, Chongming had an average AQI of 72 based on station measurements. The worst day was 2026-05-12 with AQI 92.

How is Chongming air quality measured?

Air quality in Chongming 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 Chongming, China

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

474h

PM2.5 Station

474h · 9 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	62	55–71	17.5 µg/m³	7h	10
2026-05-29	67	48–83	19.6 µg/m³	24h	12
2026-05-28	64	49–84	18.1 µg/m³	24h	11
2026-05-27	68	58–87	20.2 µg/m³	24h	13
2026-05-26	61	42–87	17.2 µg/m³	24h	13
2026-05-25	61	45–77	16.8 µg/m³	24h	12
2026-05-24	65	38–95	19.1 µg/m³	24h	13
2026-05-23	77	65–98	24.5 µg/m³	24h	15
2026-05-22	74	57–120	22.8 µg/m³	24h	12
2026-05-21	71	59–85	21.6 µg/m³	24h	13
2026-05-20	60	43–82	16.3 µg/m³	24h	12
2026-05-19	61	52–69	16.9 µg/m³	24h	13
2026-05-18	58	45–69	15.7 µg/m³	24h	13
2026-05-17	60	48–76	16.6 µg/m³	23h	13
2026-05-16	70	57–82	21.0 µg/m³	21h	14
2026-05-15	79	67–109	25.6 µg/m³	24h	15
2026-05-14	92	66–155	31.4 µg/m³	24h	14
2026-05-13	91	68–124	30.9 µg/m³	24h	14
2026-05-12	92	60–116	31.5 µg/m³	24h	14
2026-05-11	91	63–115	30.8 µg/m³	24h	14
2026-05-10	89	63–155	30.4 µg/m³	15h	15

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