What is the air quality trend in Longhe?

Over the past 15 days, Longhe had an average AQI of 63 based on station measurements. The worst day was 2026-06-03 with AQI 77.

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

291h

PM2.5 Station

291h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	54	53–56	13.9 µg/m³	2h	2
2026-06-08	48	24–93	12.8 µg/m³	20h	2
2026-06-07	57	30–95	16.0 µg/m³	20h	2
2026-06-06	59	23–119	17.1 µg/m³	20h	2
2026-06-05	68	38–139	20.7 µg/m³	21h	2
2026-06-04	69	30–129	21.1 µg/m³	22h	2
2026-06-03	77	33–164	25.4 µg/m³	21h	2
2026-06-02	76	35–112	24.0 µg/m³	23h	2
2026-06-01	68	50–107	19.9 µg/m³	21h	2
2026-05-31	66	36–119	19.8 µg/m³	20h	2
2026-05-30	72	34–105	22.3 µg/m³	24h	2
2026-05-29	63	31–104	18.6 µg/m³	17h	2
2026-05-28	65	22–109	19.5 µg/m³	19h	2
2026-05-27	64	13–154	19.2 µg/m³	24h	2
2026-05-26	50	16–97	13.0 µg/m³	17h	2

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