Does ozone behave differently with height?
Yes. We’ve studied years of ozone data from the Cadillac Mountain monitor. We’ve learned that: • Ozone levels do not drop as readily after the sun sets at high elevation sites such as Cadillac. In fact, Cadillac Mountain’s ozone levelsfrequent peak after 10 PMwhile low elevation ozone levels are dropping. • Cadillac Mountain’s height places the monitor at an elevation to monitor ozone transport aloft. At this level ozone is more stable and doesn’t break down as readily. At this level transport winds have reduced friction from the surface so ozone aloft can travel faster and further than surface ozone. • Additionally, Cadillac Mountain is geograhically located downwind of major metropolitan areas and large emission sources that are outside of the state of Maine. Ozone is formed by chemical reactions in the atmosphere in the presence of sunlight. So the pollution emitted in one area can be lofted and transported to another with ozone forming as the air mass is transported. For informatio
