What is the air quality trend in Longjing?

Over the past 14 days, Longjing had an average AQI of 80 based on station measurements. The worst day was 2026-10-13 with AQI 116.

How is Longjing air quality measured?

Air quality in Longjing 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 Longjing, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

283h

PM2.5 Station

283h · 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	74	20–368	33.7 µg/m³	19h	2
2026-10-19	59	13–89	17.2 µg/m³	20h	2
2026-10-18	50	20–91	14.1 µg/m³	16h	2
2026-10-17	53	34–112	14.1 µg/m³	21h	2
2026-10-16	73	33–117	22.7 µg/m³	17h	2
2026-10-15	88	63–142	29.2 µg/m³	20h	2
2026-10-14	88	28–168	30.6 µg/m³	22h	2
2026-10-13	116	79–177	43.6 µg/m³	21h	3
2026-10-12	97	44–152	33.3 µg/m³	23h	2
2026-10-11	87	67–177	30.3 µg/m³	24h	3
2026-10-10	97	53–137	33.4 µg/m³	22h	2
2026-10-09	88	57–156	29.7 µg/m³	19h	3
2026-10-08	86	50–160	29.0 µg/m³	20h	3
2026-10-07	71	42–132	21.7 µg/m³	19h	2

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