What is the air quality trend in West Linn?

Over the past 8 days, West Linn had an average AQI of 67 based on station measurements. The worst day was 2026-08-05 with AQI 126.

How is West Linn air quality measured?

Air quality in West Linn 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 West Linn, United States

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

Historical PM2.5 and AQI trend from monitoring stations near West Linn, United States.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 12 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	60	52–72	16.6 µg/m³	7h	22
2026-08-07	74	54–117	22.9 µg/m³	24h	20
2026-08-06	106	73–152	37.4 µg/m³	24h	19
2026-08-05	126	101–155	45.9 µg/m³	24h	17
2026-08-04	102	74–155	36.0 µg/m³	24h	21
2026-08-03	35	13–93	9.9 µg/m³	24h	20
2026-08-02	15	8–29	3.7 µg/m³	24h	21
2026-08-01	22	10–46	5.3 µg/m³	14h	21

Back to West Linn Air Quality