Benewah, Idaho Air Quality

Benewah County, Idaho (ID)

→ Stableover 10 years

Air Quality Grade

58/100

Current Median AQI

Good

5-Year Avg AQI

10-Year Change

Worse

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	Unhealthy+	Pollutant
2023	48	72	164	201	160	4	PM2.5
2022	49	69	177	187	167	11	PM2.5
2021	51	74	197	182	168	14	PM2.5
2020	42	69	492	218	139	9	PM2.5
2019	49	77	155	188	165	11	PM2.5
2018	53	80	164	156	192	13	PM2.5
2017	53	96	362	158	177	30	PM2.5
2016	43	71	177	214	144	8	PM2.5
2015	55	81	190	123	219	23	PM2.5
2014	46	77	136	199	150	13	PM2.5

What This Means for Benewah County Residents

Benewah, Idaho has received an Air Quality Grade of C (58/100) based on a decade of EPA monitoring data. The current median AQI of 48 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 10 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity.