What is the air quality trend in Shoreline?

Over the past 7 days, Shoreline had an average AQI of 52 based on station measurements. The worst day was 2026-08-06 with AQI 102.

How is Shoreline air quality measured?

Air quality in Shoreline 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 Shoreline, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 18 stations

Temperature GFS model

27pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-08-07	78	70–110	25.1 µg/m³	17.9	24h	4
2026-08-06	102	91–128	35.7 µg/m³	25.9	24h	4
2026-08-05	88	55–146	29.6 µg/m³	20.9	24h	3
2026-08-04	66	33–125	19.7 µg/m³	14.7	24h	3
2026-08-03	17	9–49	4.2 µg/m³	3.2	24h	4
2026-08-02	11	6–17	2.6 µg/m³	2.0	24h	4
2026-08-01	7	4–13	1.6 µg/m³	0.8	23h	3

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