What is the air quality trend in Thị Trấn Tiên Yên?

Over the past 8 days, Thị Trấn Tiên Yên had an average AQI of 45 based on station measurements. The worst day was 2026-10-20 with AQI 61.

How is Thị Trấn Tiên Yên air quality measured?

Air quality in Thị Trấn Tiên Yên 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 Thị Trấn Tiên Yên, Vietnam

Name: Thị Trấn Tiên Yên Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Thị Trấn Tiên Yên, Vietnam.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

140h

PM2.5 Station

140h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-20	61	24–173	19.8 µg/m³	—	15h	1
2026-10-19	44	8–70	11.8 µg/m³	—	9h	1
2026-10-18	50	13–128	14.7 µg/m³	21.3	19h	2
2026-10-17	34	12–147	9.2 µg/m³	19.8	24h	2
2026-10-16	35	15–151	9.5 µg/m³	27.7	23h	1
2026-10-15	40	13–113	11.1 µg/m³	29.5	24h	2
2026-10-14	37	15–162	10.9 µg/m³	41.1	24h	1
2026-10-13	60	56–64	16.2 µg/m³	63.0	2h	2

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