Phoenix, Arizona Air Quality Data





Current Air Quality for Phoenix, Arizona
Air Quality Index (AQI)
Observed At Time -  1:00 MST     
 
GOOD Moderate
 
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details


0-50 Good
51-100 Moderate
101-150 Unhealthy for Sensitive Groups
151-200 Unhealthy
201-300 Very Unhealthy
301-500 Hazardous





Air Quality Forecast for Phoenix, Arizona
Today's High Tomorrow's High
Air Quality Index (AQI)
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Today's High Tomorrow's High
Ozone No Data
Particles (PM10) No Data
Particles (PM2.5) No Data
Ozone No Data
Particles (PM10) No Data
Particles (PM2.5) No Data
Forecast Discussion
Forecast Discussion: Ozone once again exceeded the federal health standard, marking a week straight of exceedances. Since the EPA lowered the health standard near the end of 2015, extended stretches of exceedances like this will happen occasionally. Even so, this is a significant ozone event, and will likely be the longest stretch of elevated ozone we will see this year. Ozone has been high due to the very strong ridge over the region creating stable weather conditions and sunny skies. We anticipate ozone levels to remain above the health standard today and tomorrow. Therefore, another HPA has been issued for tomorrow, while the HPA for today remains in effect. We forecast ozone to drop down into the Health Watch range beginning on Thursday due to the ridge finally weakening a bit and breezier winds moving through the state. Looking outside, you can also see that particulates levels are elevated. This is also due to the current stable weather conditions and the lack of winds strong enough to clear the air shed. While the haze looks worse than it is for most areas, a few sites are seeing Moderate particulate levels. In addition to dust from stagnation, there is a possibility of windblown dust from distant thunderstorms this afternoon. This really depends on the exact location and strength of the thunderstorms. We don't expect a significant dust event as it looks like the primary thunderstorms of concern will be to the northeast, creating winds from that direction which don't pose as much of a threat. However, if we get strong outflow winds from thunderstorms to the southeast, we would likely see dust. Particulate levels should improve later in the week as we receive a little better ventilation. Check back tomorrow for the latest. Until then, have a great day and try to stay cool! –R. Nicoll Last Update: Tuesday, June 20, 2017, 8:41 AM





Current Hourly Air Quality Index Map
AQI: Good AQI: Moderate AQI: Unhealthy for Sensitive Groups AQI: Unhealthy AQI: Very Unhealthy AQI: Hazardous


Today's Air Quality Forecast
AQI: Good AQI: Moderate AQI: Unhealthy for Sensitive Groups AQI: Unhealthy AQI: Very Unhealthy AQI: Hazardous


Today's Air Quality Timed Animation
AQI: Good AQI: Moderate AQI: Unhealthy for Sensitive Groups AQI: Unhealthy AQI: Very Unhealthy AQI: Hazardous


Script courtesy of  Michael Holden of Relay Weather. Data courtesy of Airnow.gov