||Development of seasonal and annual biogenic emissions inventories for the U.S. and Canada /
Modica, Lysa G. ;
McCutcheon, J. R.
||Alliance Technologies Corp., Lowell, MA.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|| U.S. Environmental Protection Agency, Office of Research and Development,
Air--Pollution--United States. ;
Hydrocarbons--Environmental aspects--United States. ;
Natural emissions ;
Air pollution control ;
Volatile organic compounds ;
Farm crops ;
Pollution sources ;
Annual variations ;
Seasonal variations ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||147 pages : illustrations, maps ; 28 cm
||The report describes the development of a biogenic emissions inventory for the U.S. and Canada, to assess the role of biogenic emissions in ozone formation. Emission inventories were developed at hourly and grid (1/4 x 1/6 degree) levels from input data at the same scales. Emissions were calculated as a function of biomass density and meteorological parameters (solar radiation, cloud cover, temperature, windspeed, and relative humidity). These factors were applied to a forest canopy algorithm that simulated processes generating biogenic emissions from foliage. Resultant emissions were aggregated to monthly, seasonal, and annual levels, and spatially to counties and states. (NOTE: Historically, ozone control programs based on reductions of known anthropogenic volatile organic compound (VOC) emissions have had limited success in obtaining the National Ambient Air Quality Standard. Researchers have, therefore, been actively evaluating VOC emission sources not routinely considered in ozone control strategies. One potentially large source of reactive VOCs is thought to be emissions from crop and forest foliage.) Approximately 50% of the biogenic hydrocarbon emissions occur in the summer, approximately equal amounts (20%) in the spring and fall, and much lower amounts in the winter.
||Includes bibliographical references (pages 50-52). Microfiche.
||Washington, DC :
||See also PB89-198816 and PB91-119669. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|Corporate Au Added Ent
||United States. Environmental Protection Agency. Office of Research and Development.
|PUB Date Free Form
||PC A07/MF A02
|OCLC Time Stamp
|OCLC Rec Leader
||01248nam 2200289Ka 45020