What is the air quality trend in Shima?

Over the past 15 days, Shima had an average AQI of 78 based on station measurements. The worst day was 2026-10-13 with AQI 108.

How is Shima air quality measured?

Air quality in Shima 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 Shima, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

330h

PM2.5 Station

330h · 11 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	52	51–55	12.7 µg/m³	4h	10
2026-10-20	66	42–85	19.5 µg/m³	24h	13
2026-10-19	62	50–86	17.6 µg/m³	24h	15
2026-10-18	54	35–81	14.4 µg/m³	24h	10
2026-10-17	56	35–106	15.1 µg/m³	24h	11
2026-10-16	80	58–116	25.6 µg/m³	22h	13
2026-10-15	89	36–128	30.2 µg/m³	23h	14
2026-10-14	89	61–115	30.0 µg/m³	24h	13
2026-10-13	108	75–154	38.5 µg/m³	24h	14
2026-10-12	93	62–122	31.8 µg/m³	24h	15
2026-10-11	87	69–126	29.1 µg/m³	24h	12
2026-10-10	86	73–127	28.8 µg/m³	24h	14
2026-10-09	85	68–112	28.1 µg/m³	24h	16
2026-10-08	86	64–117	28.4 µg/m³	24h	14
2026-10-07	84	64–127	27.4 µg/m³	17h	11

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