There are some subtle differences between this topic and the 2010 version of "urban air pollution" and this needs careful consideration. This topic links back to 1.5 Humans and Pollution and 1.5 The Pollution Management Model.One of the classic mistakes that students make is confusing ozone in the stratosphere and the troposphere. Some sources refer to "good ozone" and "bad ozone" and I think this is a useful hook to...