What is the air quality trend in Longfeng?

Over the past 15 days, Longfeng had an average AQI of 57 based on station measurements. The worst day was 2026-09-03 with AQI 78.

How is Longfeng air quality measured?

Air quality in Longfeng 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 Longfeng, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

307h

PM2.5 Station

307h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	60	28–119	17.6 µg/m³	12h	2
2026-09-04	68	14–125	20.8 µg/m³	22h	2
2026-09-03	78	34–153	24.9 µg/m³	23h	2
2026-09-02	51	21–91	14.1 µg/m³	22h	2
2026-09-01	49	10–156	13.9 µg/m³	22h	2
2026-08-31	52	13–80	14.2 µg/m³	19h	2
2026-08-30	57	20–97	16.6 µg/m³	21h	2
2026-08-29	58	38–93	16.3 µg/m³	21h	2
2026-08-28	65	33–127	19.5 µg/m³	23h	2
2026-08-27	55	28–99	15.1 µg/m³	24h	2
2026-08-26	58	24–151	16.3 µg/m³	21h	2
2026-08-25	50	28–72	13.3 µg/m³	24h	2
2026-08-24	50	22–102	14.1 µg/m³	23h	2
2026-08-23	56	18–104	16.6 µg/m³	22h	2
2026-08-22	60	20–107	18.5 µg/m³	8h	2

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