Phoenix, Arizona Air Quality Data





Current Air Quality for Phoenix, Arizona
Air Quality Index (AQI)
Observed At Time -       
 
MODERATE
Data Not
Available
 
Data Not
Available
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: [View the ADEQ Hourly Forecast for Phoenix]
Yesterday, ozone was able to reach into the Health Watch Air Quality Index (AQI) range (90-100 AQI) at the Falcon Field monitor, located in northeast Mesa. All other monitors remained below this AQI range.

Today, a similar weather pattern as yesterday will be in place over Arizona: a high pressure circulation centered over southeast Arizona. This will result in stronger winds in the lower levels of the atmosphere over central Arizona, which should help to keep ozone levels in check. The main difference today though, will be the presence of high-level clouds, which could be an additional factor in limiting ozone. Therefore, ozone is forecast just below Health Watch the range.

After today, the center of the high pressure will shift around and result in weaker winds over central Arizona. All else being equal, ozone levels would be expected to increase. However, still can't rule out the possibility of cloud cover from monsoonal thunderstorms in southern Arizona, or even in Mexico, moving north into central Arizona on any given morning this week. Westerly daytime winds should also result in highest ozone levels in East Valley again.

For now, ozone is forecast in the Health Watch AQI range Thursday-Sunday. Whether or not the ozone forecast is raised into High Pollution Advisory (HPA) criteria (>100 AQI) will likely depend on forecast high-level cloud cover. This will be re-evaluated each morning.

Regarding PM10 (dust), PM10 is forecast in the Moderate AQI category on weekdays to account for dust-producing activities southwest of the Phoenix metro area. Elsewhere around the Valley, PM10 is expected to remain in the Good AQI category. Moreover, the potential for blowing dust from monsoonal thunderstorms looks highest over the weekend.

M. Graves
http://azdeq.gov/phoenix/forecast
Last Update: Wednesday, July 17, 2019, 9:03 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