Bad Air Days in Aleutians East, Alaska

Not enough data

EPA monitors in Aleutians East ran on too few days between 2016 and 2025 to give a fair yearly count (about 32% of days covered). Neighbouring counties below are a better guide.

Is a purifier worth it here?

EPA monitors here ran too few days to give a fair yearly count. Use AirNow for today's air.

The record for Aleutians East

Date	AQI	Main pollutant
2022-06-10	74	PM2.5
2016-10-03	59	PM2.5
2025-01-10	58	PM2.5
2019-02-02	55	PM2.5
2023-11-23	55	PM2.5

Most days, not the worst ones

Across 1,170 monitored days from 2016 to 2025, the air in Aleutians East rated Good on 99% of them, more often than the 72% typical of monitored counties, and Moderate on 1%. The median day sat at AQI 12; one day in ten went above 26.

The pollutant setting the AQI on an ordinary day here:

fine particles (PM2.5)100%1,170 days

Year by year

Year	Days monitored	Good	Moderate	Median AQI	Highest AQI
2025*	99	98	1	11	58
2024	112	111	1	13	53
2023	121	120	1	11	55
2022	121	119	2	12	74
2021	118	117	1	13	51
2020	121	121	0	11	41
2019	121	119	2	14	55
2018	120	120	0	13	46
2017	118	118	0	12	38
2016	119	117	2	11	59
2015	117	117	0	13	44
2014	105	103	2	12	61
2013	105	105	0	12	46
2012	116	116	0	13	48
2011	101	99	2	15	57
2010	102	102	0	11	45

*2025 may be a partial year in EPA's file.

Elsewhere in Alaska

How this is counted

A bad air day is a day the county's daily AQI from EPA AirData went above 100, the level where EPA tells children, older adults and people with asthma or heart disease to cut back outdoors. Monitors do not run every day, so yearly counts are scaled to 365 days. This is the record, not today's air: for that, check AirNow. More on the method in how the county numbers are made, on the AQI 100 line in what counts as a bad air day.