What is the air quality trend in Hangzhou?

Over the past 20 days, Hangzhou had an average AQI of 72 based on station measurements. The worst day was 2026-06-01 with AQI 93.

How is Hangzhou air quality measured?

Air quality in Hangzhou 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 Hangzhou, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

478h

PM2.5 Station

478h · 18 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-08	47	27–70	11.7 µg/m³	23h	12
2026-06-07	60	38–71	16.4 µg/m³	24h	14
2026-06-06	62	45–79	17.2 µg/m³	24h	16
2026-06-05	73	58–164	23.0 µg/m³	24h	13
2026-06-04	64	37–87	18.4 µg/m³	24h	13
2026-06-03	85	61–110	28.2 µg/m³	24h	13
2026-06-02	93	70–124	31.9 µg/m³	24h	11
2026-06-01	93	54–151	31.5 µg/m³	23h	5
2026-05-31	83	42–149	27.0 µg/m³	24h	4
2026-05-30	73	44–121	22.5 µg/m³	24h	4
2026-05-29	64	39–99	18.7 µg/m³	24h	6
2026-05-28	67	40–104	19.9 µg/m³	24h	4
2026-05-27	70	46–97	21.1 µg/m³	24h	8
2026-05-26	64	40–94	18.7 µg/m³	24h	7
2026-05-25	66	34–206	22.6 µg/m³	24h	6
2026-05-24	73	25–135	22.7 µg/m³	24h	5
2026-05-23	79	31–160	26.0 µg/m³	24h	6
2026-05-22	75	36–105	23.8 µg/m³	24h	7
2026-05-21	84	38–173	29.1 µg/m³	24h	5
2026-05-20	67	46–91	19.8 µg/m³	24h	12

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