Phoenix air quality today
Air quality in Phoenix is currently good, with a European index of 29. The concentration of PM2.5 particles is 9 µg/m³ and PM10 is 28 µg/m³. The air is good and safe to spend time outdoors. Over the next 24 hours the air will be cleanest around 6:00 AM (index 21) and most polluted around 5:00 PM (index 44).
Current air quality in Phoenix
Good
29EAQI
The air is good and safe to spend time outdoors.
- PM2.5
- 9 µg/m³
- PM10
- 28 µg/m³
- Ozone
- 48 µg/m³
Model estimate (Open-Meteo / CAMS) for the city location. It may differ from readings at local stations.
The next 24 hours at a glance
- Index now
- 29
- Good
- Average index
- 29
- Good
- Cleanest air
- 6:00 AM
- index 21
- Most polluted hour
- 5:00 PM
- index 44
- PM2.5
- 9 µg/m³
- PM10
- 28 µg/m³
Air quality in Phoenix by the hour
- 29Now
- 3011 PM
- 3012 AM
- 311 AM
- 282 AM
- 263 AM
- 244 AM
- 225 AM
- 216 AM
- 257 AM
- 278 AM
- 239 AM
- 2210 AM
- 2411 AM
- 2712 PM
- 291 PM
- 302 PM
- 363 PM
- 424 PM
- 445 PM
- 416 PM
- 347 PM
- 278 PM
- 249 PM
European Air Quality Index (EAQI) by the hour, a model estimate. A shorter bar means cleaner air.
Pollen in Phoenix
Pollen data is not available for this location. The pollen model only covers Europe.
Frequently asked questions
How is the air quality in Phoenix today?
It is currently good (European index 29). PM2.5 is 9 µg/m³, PM10 is 28 µg/m³ and ozone is 48 µg/m³. The average for the next 24 hours is around 29.
What does the European Air Quality Index (EAQI) mean?
The EAQI is a scale used by the European Environment Agency. Up to 20 is excellent air, up to 40 good, up to 60 moderate, up to 80 poor, up to 100 very poor, and above 100 extremely poor. The index is calculated from the concentration of fine particles (PM2.5 and PM10), ozone, nitrogen dioxide and sulphur dioxide.
What are PM2.5 and PM10 particles?
They are tiny particles in the air with a diameter of up to 2.5 and 10 micrometres. They come from traffic, heating and industry, and there are the most of them in winter, on calm days without wind or rain. PM2.5 is more dangerous because it penetrates deep into the lungs.
Are these measurements or estimates?
This is an atmospheric model estimate (Open-Meteo / CAMS) for the city location, not a reading from a local station. Values may therefore differ from station data in some parts of the city.
When is the air cleanest?
The air is usually cleaner during stronger winds, after rain and in the afternoon, when the cold layer near the ground breaks up. It is worst early in the morning and in the evening in the cold part of the year, when heating and traffic increase.