Yuma Real-Time AQI Tracker
Get Alerts For Unhealthy AQI In Your Area
When air quality in your area reaches unhealthy levels, we'll send you a quick alert, along with expert tips on how to reduce your exposure.
What's Actually In Yuma Air Today?
What High AQI Means for Your Lungs in Yuma
How to Read AQI
The Air Quality Index (AQI) measures how polluted the air is and how it may affect your health.
0–50 (Good): Air quality is satisfactory.
51–100 (Moderate): Acceptable, but some pollutants may pose minor concerns.
101–150 (Unhealthy for Sensitive Groups)
151–200 (Unhealthy)
201–300 (Very Unhealthy)
301+ (Hazardous)
Moderate
Still okay for most, but if you have asthma or allergies, take it easy and avoid long outdoor workouts.
Shop MERV 11 filters→What's the Right Filter for Your AQI Level?
Check Today's Live Real Time Air Quality Index AQI Map in Yuma, AZ Now
TL;DR
The live map above shows the current Air Quality Index (AQI) for Yuma, Arizona, its color and the pollutant behind it. Most of the time that pollutant is dust (PM10) off open desert and dirt roads, with ozone on hot afternoons and occasional wildfire smoke. Check the map before you head out, and step up your AC filter once the reading passes 100.
Key Takeaways
Yuma has been a federal PM10 (dust) nonattainment area since 1991, with a December 31, 2027 deadline to meet the standard.
The Yuma Supersite is the only regulatory PM10 monitor for the Yuma nonattainment area, according to EPA.
Northwest Yuma County was redesignated to attainment for ozone in November 2025.
Dust is the pollutant a pleated filter handles best. Ozone is a gas that standard pleated filters do not remove.
The Yuma Air Quality Map: Number, Color, Pollutant
The Yuma air quality map gives a number from 0 to 500, colors it by category and names the pollutant driving it.
In Yuma, the pollutant usually tells the story. PM10 points to dust from wind or a storm, ozone to a hot, sunny afternoon, and PM2.5 (fine particles) under a hazy sky usually to smoke from wildfires or burning.
Yuma AQI Levels and the Step to Take at Each One
Filterbuy's AQI Color Chart: What Green to Maroon Means walks through the full scale.
At Filterbuy, AQI 100 is our action line. It's still the top of yellow in EPA's scale, but it's where we tell customers to move. Check AirNow's smoke guidance and local officials first, then take four steps at 100 and above:
1. Put a MERV 13 filter in your HVAC system.
2. Set the thermostat fan to On so the system filters continuously.
3. Run a portable HEPA air cleaner in each occupied room, bedrooms first.
4. Close up the house; skip candles, frying and smoking indoors.
Yuma AQI categories and what to do
| AQI range | Category | What to do in Yuma |
|---|---|---|
| 0–50 | Good | Open windows on cooler days and get outside |
| 51–100 | Moderate | Normal routine; keep a MERV 13 filter and spares ready |
| 101–150 | Unhealthy for Sensitive Groups | Our four steps: MERV 13, fan On, HEPA cleaners, house closed |
| 151–200 | Unhealthy | Same four steps; check the filter more often |
| 201–300 | Very Unhealthy | Follow AirNow and county guidance; use a clean room |
| 301+ | Hazardous | Follow Yuma County health officials first |
Categories and ranges: AirNow (U.S. EPA).
Why the Yuma Reading Can Trail a Dust Storm
When I dug into EPA's Yuma records, I was struck by how thin the coverage is. EPA names the Yuma Supersite as the only regulatory PM10 monitor for the Yuma nonattainment area, a partial-county area in EPA's Green Book that covers most of Yuma, Somerton and part of San Luis. Dust over the Foothills or Gadsden won't always match it.
Timing adds another gap. AQI maps use NowCast, a weighted average of recent hours, so the reading can trail a dust storm that comes and goes within an hour. If the sky looks brown while the map still looks fine, trust your eyes.
Your phone can mislead you, too. Some weather apps report only PM2.5, so they can show Good during a haboob, which is mostly coarse PM10, as Filterbuy's dust storm and AQI guide explains.
Is Yuma's Air Safe to Breathe Right Now?
Whether Yuma's air is safe to breathe depends on the live map number. AirNow is the U.S. EPA's air quality site. It treats 100 and below as generally satisfactory. From 101 to 150, sensitive groups such as children and older adults are affected first, and above 150, everyone can be. If you have asthma, COPD or a heart condition, follow your doctor's advice.
Yuma adds two twists. Because ozone builds with sun and heat, spring-through-fall walks are better at sunrise than after lunch. Winter also brings tens of thousands of longer-stay visitors, per an Arizona State University study, so if you're new to desert dust, make the map part of your morning.
Where to Check Yuma's Air Quality Forecast
The Arizona Department of Environmental Quality (ADEQ) publishes a five-day Yuma air quality forecast covering ozone, PM10 and PM2.5, and the page links to free email alerts. Dust storms outrun forecasts, so National Weather Service warnings are your quickest heads-up. Or sign up above for Filterbuy's Yuma AQI alerts.
What Pushes Yuma's Air Quality Up
Three pollutants do most of the work in Yuma:
Yuma's main air pollutants
| Pollutant | Main Yuma sources | When it shows up | Best household move |
|---|---|---|---|
| PM10 dust | Unpaved and farm roads, construction, windblown desert soil, cross-border emissions | High-wind days and monsoon storms | Close up; check the filter after |
| Ozone | Sunlight reacting with vehicle and industrial emissions | Hot, sunny afternoons | Go out early; pleated filters miss ozone |
| PM2.5 smoke | Wildfires and open burning, including across the border | Fire season and burning episodes | MERV 13, fan On, HEPA air cleaners |
Compiled by Filterbuy from ADEQ and U.S. EPA sources.
ADEQ's Yuma PM10 nonattainment page names unpaved roads, construction, windblown dust, unpaved farm roads and emissions from across the border as the main sources. The valley grows nearly 90% of North America's winter leafy greens, according to the University of Arizona, so farm roads stay busy all winter. San Luis Río Colorado, Sonora, sits just to the south, and local officials cite trash burning and brick making there.
How Yuma Measures Up on Federal Air Standards
Yuma's federal record surprised me by cutting both ways. On dust, EPA used a 2022 Federal Register action to withdraw its 2006 finding that Yuma met the 24-hour PM10 standard, citing repeated violations, and set a December 31, 2027 deadline. Ozone is the brighter story: ADEQ reports that EPA redesignated the Yuma ozone area to attainment on November 18, 2025.
Compare the Phoenix AQI map, the Tucson AQI map or the statewide Arizona AQI map.
When Yuma's Dust and Smoke Turn Serious
EPA notes that the area's PM10 exceedances are often tied to high wind, which counts as a natural exceptional event only if human-caused dust is under control. During monsoon season, thunderstorms can push a wall of dust (a haboob) across the valley with little warning. Smoke is less common; Filterbuy's guide on how far wildfire smoke travels explains how it reaches Yuma.
Dust storms also bring up Valley fever, a lung infection the CDC says comes from breathing spores of a soil fungus. The Arizona Department of Health Services counted 77 cases in Yuma County in 2024, a rate well below the statewide average.
What to Do When a Dust Advisory Hits Yuma
When a dust advisory goes out or PM10 spikes, do this until the wind dies down:
1. Close windows and doors, and turn off any evaporative cooler.
2. Set the thermostat fan to On with a clean filter in place.
3. Move exercise indoors.
4. If you're driving into a dust wall, pull off the road, turn off your lights and take your foot off the brake.
Yuma RVs and Homes with Swamp Coolers
Many Yuma winter visitors stay in RVs or park models with rooftop AC and no whole-home filter slot. For them, a portable HEPA air cleaner is the primary defense, not an add-on. EPA's sizing chart works out to a CADR of about two-thirds of the floor area, so a 300-square-foot bedroom needs roughly 200. EPA also advises avoiding air cleaners that produce ozone. Swamp coolers pull outdoor air in through wet pads, so turn yours off on dust or smoke days.
Which AC Filter Fits Yuma's AQI Levels
Below our action line, match the filter to your home. At 100 and above, the tier is MERV 13 for any particle reading.
AQI 0–99: a Filterbuy MERV 8 air filter handles everyday dust and pollen; a Filterbuy MERV 11 air filter adds finer dust and pet dander.
AQI 100 and up: a Filterbuy MERV 13 air filter, plus the other three steps above.
What EPA says: use a filter rated MERV 13 or higher in a central system during smoke events.
Fit check: EPA notes that most furnaces and HVAC systems can take a MERV 13 filter without equipment problems, as long as it's replaced often. Find your size among Filterbuy's 600+ standard air filter sizes, with fast and free 2-day delivery to most US states. For an odd-size return grille, Filterbuy cuts custom air filters to your measurements.
Filterbuy's Take on Yuma's Dusty Air
Ozone slips through standard pleated filters, but Yuma comes with a built-in defense: the house you already close up against summer heat also limits how much outdoor ozone drifts in.
"As I researched Yuma, I kept coming back to the same point: most of what pushes the AQI up is dust, and dust is exactly what a pleated filter is built to catch. Between windy days and an air conditioner that runs most of the year, a Yuma filter fills up faster than people expect. So check the map after a windy day, then pull your filter and take a look."
- Michelle Wan, Brand Manager & Air Quality Writer, Filterbuy
That's why we tie filter checks to the weather. Check the filter monthly while the AC runs hard, let a Filterbuy auto-delivery subscription keep spares coming, and add these checks:
1. Before monsoon season: put in a fresh filter and keep a spare on hand.
2. During smoke or after a dust storm: check the filter and replace it when it looks dirty, which can be well before the normal interval.
3. When winter visitors arrive: clean or replace the rooftop AC filter in an RV or park model that sat closed all summer.
Supporting Statistics
1. 5.7 yearly dust exceedances vs. a 1.0 limit
Yuma Supersite PM10, 2017–2019. Check filters after windy days.
Source: U.S. EPA
2. Arizona Valley fever rate: 112.8 to 193.7 per 100,000
Statewide, 2015–2024. Yuma runs lower; still stay in during dust storms.
3. Americans spend about 90% of their time indoors
Some indoor pollutants run 2–5 times higher. Keep the house closed on bad-air days.
Source: U.S. EPA
Frequently Asked Questions
What is the air quality in Yuma today?
The live map at the top of this page shows Yuma's current AQI and the pollutant behind it, and ADEQ's forecast adds a five-day outlook.
Is the air quality bad in Yuma today?
Above 100 on the live map, Yuma's air is unhealthy for sensitive groups; above 150, for everyone. A brown sky means close up, even before the number catches up.
Why is Yuma's air so dusty?
ADEQ points to wind over dry desert soil, unpaved and farm roads, construction and cross-border emissions.
What does PM2.5 on the Yuma AQI map mean?
Fine particles (PM2.5), usually from wildfire smoke or burning, are driving the reading. At 100 or above, use MERV 13, set the fan to On, run HEPA air cleaners and close up.
Does an AC filter help with ozone in Yuma?
Not a standard pleated one. Pleated filters capture particles, and ozone is a gas. On high-ozone days, keep windows closed and go out early.
Glossary
AQI: EPA's 0 to 500 Air Quality Index, split into six color-coded categories.
PM10: Inhalable particles 10 microns or smaller, such as desert dust; Yuma's main pollutant of concern.
PM2.5: Fine particles that reach deep into the lungs, mostly from smoke and combustion.
Ozone: A gas formed when sunlight reacts with emissions.
Haboob: A wall of dust pushed ahead of thunderstorm winds.
Nonattainment area: A region EPA has found does not meet a federal air quality standard.
ADEQ: The Arizona Department of Environmental Quality, which monitors and forecasts Yuma's air.
MERV: Minimum Efficiency Reporting Value, a 1 to 16 rating of how well an HVAC filter captures particles.
Filterbuy: A U.S. manufacturer of HVAC air filters in MERV 8, 11 and 13 ratings, sold factory-direct in 600+ sizes.