What is the air quality trend in Lanzhou?

Over the past 15 days, Lanzhou had an average AQI of 64 based on station measurements. The worst day was 2026-05-21 with AQI 89.

How is Lanzhou air quality measured?

Air quality in Lanzhou 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 Lanzhou, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

319h

PM2.5 Station

319h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	80	53–117	25.6 µg/m³	7h	1
2026-05-29	70	42–99	21.1 µg/m³	23h	1
2026-05-28	57	30–107	15.8 µg/m³	23h	1
2026-05-27	65	22–102	19.4 µg/m³	24h	2
2026-05-26	57	21–98	16.5 µg/m³	23h	2
2026-05-25	56	19–134	16.2 µg/m³	23h	1
2026-05-24	50	19–74	13.6 µg/m³	23h	1
2026-05-23	72	20–153	22.4 µg/m³	24h	1
2026-05-22	76	40–153	24.1 µg/m³	23h	2
2026-05-21	89	42–350	37.3 µg/m³	24h	1
2026-05-20	65	16–127	19.6 µg/m³	23h	2
2026-05-19	57	24–106	16.4 µg/m³	24h	2
2026-05-18	52	29–95	14.3 µg/m³	22h	1
2026-05-17	57	25–99	16.3 µg/m³	22h	1
2026-05-16	65	40–97	18.9 µg/m³	11h	2

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