Garfield, Utah Air Quality

Garfield County, Utah (UT)

↓ Improvingover 10 years

Air Quality Grade

73/100

Current Median AQI

Good

5-Year Avg AQI

-32

10-Year Change

Better

Unhealthy Days/yr

5-year average

Ozone

Primary Pollutant

Ground-Level Ozone

10-Year AQI Trend

The solid line shows the median AQI each year. The dashed line shows the 90th percentile (worst 10% of days). This area has seen measurable air quality improvement over the decade.

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	10	19	38	121	0	0	PM2.5
2022	44	58	93	246	47	0	Ozone
2021	45	64	115	273	87	2	Ozone
2020	42	50	74	331	34	0	Ozone
2019	41	51	80	258	41	0	Ozone
2018	44	74	122	259	104	2	Ozone
2017	44	71	105	176	62	2	Ozone
2016	11	24	33	96	0	0	PM2.5
2015	42	58	108	299	63	2	Ozone
2014	42	49	80	342	22	0	Ozone

What This Means for Garfield County Residents

Garfield, Utah has received an Air Quality Grade of B (73/100) based on a decade of EPA monitoring data. The current median AQI of 10 falls in the "Good" range.

Encouragingly, air quality here has been improving, with the median AQI dropping by 32 points over the monitoring period. This trend suggests continued investment in emission controls and cleaner energy.

The primary pollutant affecting this area is Ground-Level Ozone. 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.