Phoenix, AZ Air Quality Alert: PM10 Levels Unhealthy for Sensitive Groups
Areazine synthesizes this EPA air-quality advisory directly from EPA's official public data feed. See our methodology for full source attribution and refresh cadence.
On February 24, 2026, air quality in Phoenix, AZ reached an AQI of 145 for PM10, categorized as Unhealthy for Sensitive Groups.
What this EPA air-quality advisory tells you, and what most readers miss
This notice was issued by EPA on April 6, 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 informational context it sits in, and which agency or body is the authoritative source for updates.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to verify its scope, source, and timestamp, then compare related notices without assuming that one record proves a broader trend.
Areazine pairs this record with the original agency URL so you can check the primary source before acting. Its related labels are air-quality, epa, aqi, Phoenix.
Current Air Quality
In Phoenix, AZ, the air quality index (AQI) has reached a peak level of 145 for the observation date of February 24, 2026. The primary pollutant of concern is PM10, which is currently classified in the 'Unhealthy for Sensitive Groups' category. Other monitored pollutants in the area include PM2.5, which recorded an AQI of 95 (Moderate), and Ozone (O3), which recorded an AQI of 44 (Good).
What This Means
An AQI value between 101 and 150 is classified by the EPA as 'Unhealthy for Sensitive Groups' (USG). At this level, air quality is considered acceptable for the general public; however, members of sensitive groups may experience health effects from exposure to the air.
Who Should Take Precautions
Groups at increased risk from PM10 exposure include people with heart or lung disease, older adults, and children. These individuals are more sensitive to the effects of particle pollution and should take appropriate measures to protect their health.
What You Should Do
Members of sensitive groups should reduce prolonged or heavy exertion outdoors. It is advisable to take more breaks and do less intense activities. The general public is generally not affected by this level of air quality and does not need to limit outdoor activity.
Source
Data provided by EPA AirNow.
Original source: EPA Official Notice ↗
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All Air Quality →Frequently Asked Questions
Common questions about this EPA air-quality advisory.