What is the air quality trend in Longhe?

Over the past 15 days, Longhe had an average AQI of 60 based on station measurements. The worst day was 2026-05-31 with AQI 75.

How is Longhe air quality measured?

Air quality in Longhe 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 Longhe, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

190h

PM2.5 Station

190h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	40	26–52	9.6 µg/m³	5h	1
2026-06-08	44	16–68	11.6 µg/m³	12h	1
2026-06-07	46	21–88	12.0 µg/m³	14h	2
2026-06-06	62	13–100	18.3 µg/m³	16h	2
2026-06-05	66	37–104	19.7 µg/m³	13h	1
2026-06-04	71	20–142	22.2 µg/m³	22h	1
2026-06-03	65	31–124	19.2 µg/m³	14h	1
2026-06-02	67	34–119	20.0 µg/m³	15h	1
2026-06-01	69	54–97	20.7 µg/m³	11h	1
2026-05-31	75	44–95	23.7 µg/m³	11h	1
2026-05-30	70	30–106	21.5 µg/m³	11h	1
2026-05-29	73	15–152	23.3 µg/m³	13h	1
2026-05-28	63	31–119	18.4 µg/m³	10h	1
2026-05-27	51	21–79	14.0 µg/m³	17h	1
2026-05-26	40	25–61	9.8 µg/m³	6h	2

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