An inversion represents a layer of the atmosphere in which the temperature gets warmer the higher you go. A variety of conditions can cause inversions, but most common in Arizona is the nighttime inversion. This is when a layer of cooler air is trapped near the ground by a layer of warm air above the surface. When the air cannot rise, pollution accumulates near the ground, leading to higher pollutant concentrations | Learn More about Inversions >
 

To avoid health risks associated with poor air quality related to Particle Pollution:

• Choose areas away from busy streets for children and the elderly to walk, exercise or play.

• Subscribe to ADEQ Daily Air Quality Forecasts and follow the recommended health statement

• Limit outdoor activity when there is smoke and dust in the air

• Implement policies and education programs to limit vehicle idling when possible

• Do not burn wood on No Burn days.

• Eliminate the use of leaf blowers and gasoline-powered equipment during health alerts and high pollution advisory (HPA) days | Learn More about HPAs > 

• Stabilize loose soils

• Slow down on dirt roads, carpool and use public transit

Learn more about Particle Pollution | View Fact Sheet >