Air Quality Alert: Phoenix Air Quality Reaches Unhealthy Levels for Sensitive Groups

Source: EPA · Phoenix, AZ

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On February 13, 2026, air quality in Phoenix, AZ reached an AQI of 121, categorized as Unhealthy for Sensitive Groups, with PM10 as the primary pollutant.

What this EPA air-quality advisory tells you, and what most readers miss

This notice was issued by EPA on February 13, 2026 and geographically references Phoenix, AZ. Its severity classification of "low" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Air Quality — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly EPA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized EPA air-quality advisory is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (air-quality, epa, aqi, Phoenix) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Current Air Quality

As of February 13, 2026, the air quality in the Phoenix, AZ reporting area has reached a level categorized as "Unhealthy for Sensitive Groups." The primary pollutant of concern is PM10, which recorded an Air Quality Index (AQI) value of 121. Other pollutants monitored include PM2.5, which recorded an AQI of 66 (Moderate), and Ozone (O3), which recorded an AQI of 38 (Good).

What This Means

An AQI of 121 falls into the "Unhealthy for Sensitive Groups" category. This indicates that while the general public is not likely to be affected, members of sensitive groups may experience health effects due to the concentration of air pollutants.

Who Should Take Precautions

Groups at increased risk from this level of particle pollution (PM10) include people with heart or lung disease, older adults, and children.

What You Should Do

Members of sensitive groups should reduce prolonged or heavy exertion. It is recommended to take more breaks and engage in less intense outdoor activities. Watch for symptoms such as coughing or shortness of breath. The general public is less likely to be affected and does not need to reduce outdoor activity.

Source

Data provided by EPA AirNow.

Original source: EPA Official Notice ↗

All Air Quality →

Frequently Asked Questions

Common questions about this EPA air-quality advisory.

What is this EPA air-quality advisory about?
On February 13, 2026, air quality in Phoenix, AZ reached an AQI of 121, categorized as Unhealthy for Sensitive Groups, with PM10 as the primary pollutant.
Which agency issued this alert?
This alert was issued by EPA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "low" severity. No immediate action required, but stay aware.
What area is affected?
This alert affects Phoenix, AZ. Check with EPA for the most current geographic scope.
Where can I find more Air Quality updates?
Browse the full Air Quality feed on Areazine at areazine.com/air-quality/ for the latest updates from EPA and other agencies.