What is the air quality trend in Longchi?

Over the past 15 days, Longchi had an average AQI of 57 based on station measurements. The worst day was 2026-07-20 with AQI 66.

How is Longchi air quality measured?

Air quality in Longchi 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 Longchi, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

270h

PM2.5 Station

270h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	56	32–96	15.7 µg/m³	8h	2
2026-07-21	61	38–80	17.2 µg/m³	17h	2
2026-07-20	66	52–90	19.4 µg/m³	20h	2
2026-07-19	53	24–89	14.3 µg/m³	17h	2
2026-07-18	61	21–112	17.5 µg/m³	12h	2
2026-07-17	61	30–144	18.3 µg/m³	18h	2
2026-07-16	58	34–160	16.9 µg/m³	22h	2
2026-07-15	58	28–89	16.4 µg/m³	22h	2
2026-07-14	54	19–91	15.1 µg/m³	19h	2
2026-07-13	57	31–97	15.6 µg/m³	21h	2
2026-07-12	54	34–68	14.1 µg/m³	21h	2
2026-07-11	47	25–68	11.8 µg/m³	22h	2
2026-07-10	63	13–215	25.4 µg/m³	21h	2
2026-07-09	53	30–81	14.3 µg/m³	20h	2
2026-07-08	58	20–101	16.5 µg/m³	10h	2

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