Phoenix is experiencing moderate air quality today, with the main pollutant of concern being ozone. The Air Quality Index for ozone is forecast at 90, which falls into the moderate range. This means that while the air is generally acceptable, sensitive individuals, such as those with respiratory conditions, young children, and older adults, may experience mild health effects if they are outdoors for extended periods[2]. The maximum 8-hour average ozone concentration is expected to reach 67 parts per billion.
Particulate matter is also present at moderate levels. PM10, which consists of inhalable particles smaller than 10 micrometers, has a forecast AQI of 63 with a 24-hour average concentration of 79 micrograms per cubic meter. Fine particles, or PM2.5, have a forecast AQI of 54 and a 24-hour average of 10.9 micrograms per cubic meter[2]. These levels are unlikely to affect the general population, but people with heart or lung disease, children, and older adults should consider reducing prolonged or heavy exertion outdoors.
Currently, there is an official Air Quality Alert in effect for Phoenix until 9:00 PM tonight, but the National Weather Service has assessed the overall threat to life as minimal to none[3]. Despite fluctuating air quality levels over the past 24 hours, the overall trend remains moderate, meaning that outdoor activities can generally continue as planned, though sensitive individuals are advised to monitor symptoms and limit exertion if needed[2][5].
As temperatures in Phoenix rise into the upper 30s Celsius, it is particularly important to watch ozone levels, which tend to increase with summer heat. Even on a moderate air quality day, limiting time spent outdoors during midday and early afternoon, when ozone peaks, can help minimize exposure for those who are most at risk[2][1].
This content was created in partnership and with the help of Artificial Intelligence AI
