Additions and Corrections. Effect of Fuel Structure on Emissions from a

ADDITIONS AND CORRECTIONS 1992, Volume 26, Pages 739-744 Jonathan S. Nimitz* and Stephanie R. Skaggs: Estimating Trophospheric Lifetimes and Ozone-Depletion Potentials of One- and Two-Carbon Hydrofluorocarbons and Hydrochlorofluorocarbons. On page 739 the correct address for Jonathan S. Nimitz should be Environmental Technology & Education Consultants, 3300 Mountain Road NE, Albuquerque, New Mexico 87106-1920,and the correct address for Stephanie R. Skaggs should be the Center for Global Environmental Technologies,New Mexico Engineering Research Institute, University of New Mexico, Albuquerque, New Mexico 87131-1376. 1991, Volume 25, Pages 2005-2012 Edward W. Kaiser,* Walter 0. Siegl, Yitshak I. Henig, Richard W. Anderson, and Frederick H. Trinker: Effect of Fuel Structure on Emissions from a Spark-Ignited Engine. Three exhaust species entries for butane fuel are erroneous. In Table I, propylene should be changed from 90 to 130 ppm C1. In Table 11, n-butane should be changed from 555 to 195 ppm C1. In Table IV, n-butane should be changed from 160 to 212 ppm C1, yielding unburned fuel of 40%. On page 2008, third line from the bottom of column 1,the text should read "... equilibrated OH density at 1500 K and @ = 1 ...". The corrections do not affect any interpretations presented.

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