Analyzing Air Pollution Page 2
What happened to CFC amounts for the years 1975 to
19912
What happened to CFC amounts for the years 1991 to
2015
Which health benefit is most likely to occur due to
reductions in air pollution such as CFCS?
In 1978 the United States banned the use of
chlorofluorocarbons (CFCSCFCs are gases
found in hairsprays and coolants that damage the
atmosphere in 1987. CRCs were banned around
the world use the graph to answer the following
questions about changes in CFC levels