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原文传递 Emissions of Nitrous Oxide from Highway Mobile Sources: Comments on the 'Draft Inventory of U.S. Greenhouse Gas Emissions and Sinks, 1990-1996' (March 1998).

题名：	Emissions of Nitrous Oxide from Highway Mobile Sources: Comments on the 'Draft Inventory of U.S. Greenhouse Gas Emissions and Sinks, 1990-1996' (March 1998).
作者：	H. Michaels;
关键词：	highway mobile sources,emissions,nitrous oxide,greenhouse gases;air quality standards, motor vehicles, mobile pollutant sources, emission factors, catalyst, validity;
摘要：	The estimate of the contribution of nitrous oxide from mobile sources to total U.S. emissions of greenhouse gases went from one-half percent in the last official inventory, published in 1997 (U.S. EPA) to three percent in the March 10, 1998, draft Inventory of U.S. Greehouse Gas Emissions and Sinks 1990-1996 (U.S. EPA), which will be referred to in these comments as the Draft Inventory. The primary reason for this change is the use of much larger emission factors for gasoline highway vehicles, rather than increases in vehicle miles traveled. OMS believes that these emission factors are considerably larger than they should be. Therefore, these comments will focus primarily on the origin and validity of the emission factors used in the Draft Inventory and on the development of better ones. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A04/MF A04 / NTIS In-house Control Codes: epaoar;12111,1101
报告类型：	科技报告