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 WASHINGTON, Oct. 4 /PRNewswire/ -- The American Automobile Association said today that the automobile is no longer the main cause of summertime ozone smog in major cities, and urged that clean air controls be re-directed toward industry, big trucks and other mobile sources.
 AAA released a study, "Clearing the Air," showing that autos and light trucks currently represent less than one-third of the overall emissions that lead to severe ozone problems in Atlanta, Baltimore, Boston, Chicago, Houston, Los Angeles, Milwaukee, New York, Philadelphia and Washington, D.C.
 "It's time to put the blame for ozone smog where it should be," said Darryl L. Wyland, AAA senior vice president for government and public relations. "New data submitted to the U.S. Environmental Protection Agency by states indicate that two-thirds of the smog in these cities is coming from smoke stacks, refineries, big trucks and buses -- not cars, pick-ups and recreational vehicles," he said.
 Wyland said the study, performed by Energy & Environmental Analysis, Inc. of Arlington, Va., indicates that since 1970 the reduction in auto emissions has offset the growth in vehicle population in the 10 worst ozone cities in the country.
 "AAA is calling attention to this new information to send a message to states to re-direct the pollution control plans they must submit to EPA by November 15th. Because the automobile is less than a third of the ozone problem, it shouldn't bear the brunt of two-thirds of the controls in many of these plans," Wyland added.
 The study indicates that in cities like Baltimore, Houston and Philadelphia, 80 percent to 90 percent of the volatile organic compound (VOC) and 70 percent to 80 percent of the nitrogen oxide (NOx) emissions come from stationary and "other mobile" sources.
 In cities like Atlanta, Boston and Washington, D.C., 60 percent to 80 percent of VOC and NOx emissions come equally from stationary sources and "other mobile sources" like trucks, buses, utility and off-road vehicles and loan mowers.
 The study says the reversal of the automobile's role in urban smog is due primarily to the success of tightening federal tailpipe emission standards, cutting hydrocarbon and NOx levels by 96 percent and 76 percent, respectively, over the past 25 years.
 It projects that in cities like Houston, Philadelphia and Washington, D.C., autos and light trucks will be responsible for less than 15 percent of the VOC and NOx emissions by 1996 -- before the imposition of enhanced vehicle emission inspections and federally mandated reformulated gasoline.
 Even in the Los Angeles smog basin, the study projects that the auto represents only 20 percent and 21 percent of the VOC and NOx problems, respectively, and that light trucks account for 7 percent and 9 percent of the two emissions.
 "Through the replacement of older vehicles with clean, new ones, motorists have struck a clean blow at dirty air over the past two decades," Wyland said. "This effort has cost billions in consumer dollars, but it has been worth it."
 He added that although continued efforts must be made to achieve healthy air quality, autos and light trucks should be treated in the future as just two of many other ozone sources.
 -0- 10/4/94
 /CONTACT: Bill Jackman, 202-942-2082, or Jerry Cheske, 407-444-8000, both of the American Automobile Association/

CO: American Automobile Association ST: District of Columbia IN: ENV SU:

RK-AD -- FL004 -- 0920 10/04/94 12:14 EDT
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Publication:PR Newswire
Date:Oct 4, 1994

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