What is the air quality trend in Longchi?

Over the past 14 days, Longchi had an average AQI of 91 based on station measurements. The worst day was 2026-10-12 with AQI 148.

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
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

323h

PM2.5 Station

323h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	71	20–135	23.0 µg/m³	22h	3
2026-10-19	72	48–107	21.8 µg/m³	23h	3
2026-10-18	50	27–81	13.5 µg/m³	24h	3
2026-10-17	45	18–67	11.5 µg/m³	24h	3
2026-10-16	67	34–133	20.4 µg/m³	23h	2
2026-10-15	120	70–162	44.6 µg/m³	23h	3
2026-10-14	84	40–129	27.4 µg/m³	22h	2
2026-10-13	76	36–156	24.6 µg/m³	23h	3
2026-10-12	148	81–174	65.8 µg/m³	24h	3
2026-10-11	126	67–165	48.6 µg/m³	24h	3
2026-10-10	127	91–159	48.1 µg/m³	22h	3
2026-10-09	110	58–156	39.7 µg/m³	24h	3
2026-10-08	100	53–164	35.7 µg/m³	24h	3
2026-10-07	91	56–148	30.6 µg/m³	21h	3

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