What is the air quality trend in Longtan?

Over the past 20 days, Longtan had an average AQI of 62 based on station measurements. The worst day was 2026-05-30 with AQI 80.

How is Longtan air quality measured?

Air quality in Longtan 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 Longtan, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

391h

PM2.5 Station

391h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-08	44	22–75	11.3 µg/m³	21h	2
2026-06-07	48	17–89	12.7 µg/m³	21h	2
2026-06-06	63	17–131	18.8 µg/m³	21h	2
2026-06-05	68	33–103	20.7 µg/m³	21h	2
2026-06-04	70	35–110	21.8 µg/m³	22h	2
2026-06-03	68	20–152	20.7 µg/m³	21h	2
2026-06-02	67	16–109	20.4 µg/m³	21h	2
2026-06-01	69	30–98	20.9 µg/m³	15h	2
2026-05-31	71	42–102	21.7 µg/m³	18h	2
2026-05-30	80	30–152	26.2 µg/m³	19h	2
2026-05-29	63	25–129	18.7 µg/m³	22h	3
2026-05-28	62	33–129	17.8 µg/m³	15h	2
2026-05-27	60	28–93	16.8 µg/m³	18h	2
2026-05-26	51	13–97	13.4 µg/m³	20h	2
2026-05-25	41	13–66	10.4 µg/m³	19h	2
2026-05-24	55	13–93	15.2 µg/m³	20h	2
2026-05-23	79	24–157	26.5 µg/m³	17h	2
2026-05-22	56	30–114	15.9 µg/m³	20h	2
2026-05-21	71	31–322	29.2 µg/m³	20h	2
2026-05-20	56	20–107	16.3 µg/m³	20h	2

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