Air Quality Alert: Phoenix, AZ Reaches Unhealthy Levels for PM10 on March 20
Air quality in Phoenix, AZ reached Unhealthy levels on March 20, 2026, with PM10 recorded at an AQI of 194, prompting health precautions for the general public.
Current Air Quality
On March 20, 2026, the reporting area of Phoenix, AZ, recorded an Air Quality Index (AQI) of 194 for PM10, placing it in the “Unhealthy” category. Other pollutants measured during this period include PM2.5 with an AQI of 81 (Moderate) and Ozone (O3) with an AQI of 47 (Good). PM10 is the primary pollutant of concern for the region.
What This Means
An AQI level of 194 is classified as “Unhealthy.” At this level, the air quality is considered a health concern for the general public. Everyone may begin to experience health effects, and members of sensitive groups may experience more serious health effects.
Who Should Take Precautions
While the general population may be affected, specific groups are at higher risk. These include children, older adults, and individuals with heart or lung disease, such as asthma.
What You Should Do
To minimize health risks, it is recommended that everyone reduce prolonged or heavy exertion outdoors. Members of sensitive groups should avoid prolonged or heavy exertion and consider moving activities indoors or rescheduling them to a time when air quality has improved.
Source
Data provided by EPA AirNow.
Source: EPA Official Notice
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