What can you do to prevent pollution in an area?
Secondary pollution occurs when primary forms of air pollution,
such as vehicle exhaust and factory emissions, interact with each
other to form new kinds of pollution. Acid rain, for instance, is a
form of secondary air pollution. If you prevent primary pollutants
from getting into the atmosphere, you eliminate the ingredients
necessary for secondary pollution to occur, thereby creating the
secondary effect that these additional pollutants do not form in
the first place.