Mathematics and Society - OS X Lion Server

PAIZTfCULA£POLLUTANTSTl-\(:Y USED TO HAVE '" '" = 0 0OXYGEI\l ltV THEIR "tR. .-" ~: I. ..-:~ I ,SOURCES OF U.S. AIR POLLUTION (1974, est.)•(millions of metric tonnes)Kind of PollutantCarbon Sulfur Hydro- Nitrogen Particu- TotalSource monoxide oxides carbons oxides lates for sourceTransportation 73.5 .8 12.8 10.7 1.3Heating .6 5.6 1.6 4.0 2.6Power plants .3 18.7 0.1 7.0 3.3Industry 12.7 6.2 3.1 0.6 n.oBurning waste 2.4 0 0.6 0.1 0.5Uncontrolledand misc.Totals5.1 0.1 12.20.1 0.8Data from Statistical Abstract of the United States 19751) Find the totals for each source and for each kind of pollutant.?) What was the grand total of air pollution in 1974?3) About what percent of the total pollution does transportation put in the air?4) Make a circle graph for either the sources (use the totals column) or the kindsof pollutants (use the bottom row). (Round the grand total to 200 million andeach of the other totals to the nearest million.)5) Transportation puts in lots more hydrocarbons than sulfur oxides. Power plants dothe reverse. Why is this?211