What is the air quality trend in Guiren?

Over the past 14 days, Guiren had an average AQI of 57 based on station measurements. The worst day was 2026-07-21 with AQI 68.

How is Guiren air quality measured?

Air quality in Guiren 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 Guiren, China

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

306h

PM2.5 Station

306h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	68	34–124	20.7 µg/m³	19h	2
2026-07-20	61	25–83	17.4 µg/m³	23h	2
2026-07-19	62	17–156	18.2 µg/m³	21h	2
2026-07-18	67	30–117	20.2 µg/m³	21h	2
2026-07-17	57	16–97	16.1 µg/m³	24h	2
2026-07-16	49	14–84	13.4 µg/m³	24h	2
2026-07-15	58	20–102	16.8 µg/m³	20h	2
2026-07-14	50	13–85	13.6 µg/m³	19h	1
2026-07-13	53	25–89	14.6 µg/m³	20h	2
2026-07-12	53	14–90	14.8 µg/m³	23h	2
2026-07-11	53	13–81	14.3 µg/m³	23h	2
2026-07-10	63	25–104	18.4 µg/m³	24h	2
2026-07-09	61	21–258	23.0 µg/m³	22h	2
2026-07-08	53	18–83	14.4 µg/m³	23h	2

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