Why is ozone a summer air challenge?
Ground-level ozone pollution is formed when emissions from everyday items combine with other pollutants and cook in the heat and sunlight. Sources of such emissions include local industry, gasoline and diesel-powered vehicles and lawn equipment, and household paints, stains, and solvents.

Weather plays a key role in ozone formation. The highest ozone levels are usually recorded in summer months when temperatures approach the high 80s and 90s and when the wind is stagnant or light.

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1. What is ozone?
2. Why is ozone a summer air challenge?
3. How does ozone affect my health and the health of my family?
4. What are possible health effects due to high ozone levels?
5. Does ozone threaten Shelby County's air status?
6. What can I do to prevent ozone pollution?