Mathematics and Society - OS X Lion Server

))JFO~MA1[ON:dee poccurlON ( ,1) Every year, about 180 million metric tonnes of pollution goes into the air. Wh~tpart of a metric tonne is this for every person in the United States? (Assume thatthere are 215,000,000 people in the U.S.)2) About 85% of the air pollution is invisible.How many tonnes a year are invisible?3) It is estimated that air pollution costs $65per year for each person because of propertydamage, upkeep, repair and cleaning. Whatis the total U.S. air pollution expense peryear from these causes?L C5W\-\O, ME?JO~OAbout half the air pollution is caused by motor vehicles.AUTOMOBILE POLLUTANT EMISSIONS(grams/km traveled)1957- 1970- 1972- 1975 temporary1967 1971 1974 standardsPollutant average figures standards U. S. Calif .Carbon monoxide 54 21 17 9.3 5.6Hydrocarbons 5.4 2.5 1.8 0.93 0.56Nitrogen oxides n.a.* 2.4 1.9 ('73) 1.9 1. 24~E.WER KIr0D :CAR FUt-I\E.S + SUN :PI-\OTOCI-IEMICALSIv\QG(*not availableData from Statistical Abstract of theUnited States 19754) Why does California allow less pollutants than the U.S. standards?5) The 1975 legal standards were 10% of the 1970 figures. How did the 1975 temporarystandards compare with the 1975 legal standards?6) Find out how many kilometres your family car is driven each week.above, calculate how many grams of air pollution it probably putsEach year.7) There are two kinds of smog.OLOER KIt-lD: SMOKE. FOG = SMOG"-t~.:::~.'-·::·:>~)\ ~'.:':I':':' ....With the chartout each week.216Is either kind a problem where you live?