Aleutians East, Alaska Air Quality

Aleutians East County, Alaska (AK)

→ Stableover 10 years

Air Quality Grade

78/100

Current Median AQI

Good

5-Year Avg AQI

-1

10-Year Change

Better

Unhealthy Days/yr

5-year average

PM2.5

Primary Pollutant

Fine Particulate Matter (PM2.5)

10-Year AQI Trend

The solid line shows the median AQI each year. The dashed line shows the 90th percentile (worst 10% of days).

Air Quality Day Breakdown

Number of days per year in each EPA AQI category. Green = Good (AQI 0-50), Yellow = Moderate (51-100), Orange = Unhealthy for Sensitive Groups (101-150), Red = Unhealthy or worse (151+).

Year-by-Year Data

Year	Median AQI	90th Pct	Max AQI	Good Days	Moderate	Pollutant
2023	11	23	55	120	1	PM2.5
2022	12	27	74	119	2	PM2.5
2021	13	29	51	117	1	PM2.5
2020	11	29	41	121	0	PM2.5
2019	14	29	55	119	2	PM2.5
2018	13	28	46	120	0	PM2.5
2017	12	24	38	118	0	PM2.5
2016	11	24	59	117	2	PM2.5
2015	13	28	44	117	0	PM2.5
2014	12	25	61	103	2	PM2.5

What This Means for Aleutians East County Residents

Aleutians East, Alaska has received an Air Quality Grade of B (78/100) based on a decade of EPA monitoring data. The current median AQI of 11 falls in the "Good" range.

The primary pollutant affecting this area is Fine Particulate Matter (PM2.5). Over the past 5 years, this area has averaged 0 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity.