The document discusses reducing ozone emissions during the summer ozone season. It notes that ground-level ozone levels increase between June and September due to vehicle emissions. It encourages actions like driving less, combining trips, properly maintaining tires, limiting idling to reduce ozone-forming pollutants. People most at risk from ozone include children, outdoor workers and those with asthma or respiratory issues. The EPA tightened ozone standards in 2015 and levels in Pima County are close to violating them.