f881c3e3_Air_Alternatives__A_Fact_Sheet__Its_Sources
[Pollutant] Ozone [Health Effects] Irritates eyes, nose & throat; increases asthma attacks & impairs athletic performance. [Its Sources] 
Formed when heat & sunlight mix with pollutants from industry, gas powered equipment & household products.
Cleaner Air: Mowing Emissions and Clean Air Alternatives. A Fact Sheet
Its Sources