What is the air quality trend in Rui’an?

Over the past 15 days, Rui’an had an average AQI of 65 based on station measurements. The worst day was 2026-05-30 with AQI 79.

How is Rui’an air quality measured?

Air quality in Rui’an 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 Rui’an, China

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

Historical PM2.5 and AQI trend from monitoring stations near Rui’an, China.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

322h

PM2.5 Station

322h · 12 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	79	79–79	25.2 µg/m³	1h	12
2026-05-29	77	52–129	24.6 µg/m³	24h	12
2026-05-28	62	28–117	18.2 µg/m³	22h	7
2026-05-27	62	18–130	18.0 µg/m³	24h	8
2026-05-26	66	26–84	19.6 µg/m³	24h	8
2026-05-25	46	10–70	12.2 µg/m³	22h	6
2026-05-24	73	23–131	23.1 µg/m³	22h	5
2026-05-23	77	52–125	24.1 µg/m³	24h	7
2026-05-22	76	40–151	23.7 µg/m³	23h	7
2026-05-21	71	37–112	21.7 µg/m³	24h	6
2026-05-20	63	21–155	18.5 µg/m³	22h	13
2026-05-19	56	39–81	15.0 µg/m³	24h	17
2026-05-18	56	27–104	15.2 µg/m³	24h	11
2026-05-17	54	42–75	13.9 µg/m³	22h	15
2026-05-16	60	13–95	17.3 µg/m³	20h	8

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