Ozone levels are highest in the summer when high temperatures, calm winds, and lots of sunshine prevail. In the real world we can't control the weather, but in Smog City you can experiment with the weather's effect on ozone by adjusting the controls. Maximum Temperature Heat increases the chemical conversion of emissions to ozone. This control represents the daily maximum temperature and ranges from 80 to 120 F. Inversion Layer A temperature inversion is a layer of warm air above the ground that traps pollution and ground-level ozone below it. Wind Speed Winds blow emissions and ozone around.
Calm winds cause emissions levels to increase.
Cloud Cover Sunlight converts emissions of VOCs and NOx into ozone. Cloud cover ranges from sunny to partly cloudy to cloudy.