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Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

FROM VOLUME 10, NUMBER 9, SEPTEMBER 1997

PROFESSIONAL PUBLICATIONS...
ANTHROPOGENIC EMISSIONS -- LANDFILL EMISSIONS

Item #d97sep4

"Kinetics of Methane Oxidation in a Landfill Cover Soil: Temporal Variations, a Whole-Landfill Oxidation Experiment, and Modeling of Net CH₄ Emissions," J.E. Bogner (Environ. Res. Div., Argonne Natl. Lab., 9700 S. Cass Ave., Argonne IL 60439; e-mail: jean_bogner@qmgate.anl.gov), Environ. Sci. & Technol., 31(9), 2504-2514, Sep. 1997.

Although landfills are one of the largest sources of methane emissions in the U.S., methanotrophic bacteria in aerated landfill cover soils can, under some conditions, consume some or all of the methane generated. This study used field measurements to develop a practical computer model for order-of-magnitude prediction of net methane fluxes at field sites.

Item #d97sep5

"Trace Organic Compounds in Landfill Gas at Seven U.K. Waste Disposal Sites," M.R. Allen, A. Braithwaite, (Dept. Chem. & Phys., Nottingham Trent Univ., Nottingham NG11 8NS, UK.; e-mail: CHP3BRAITA@NTU.ac.uk), C.C. Hills,Environ. Sci. & Technol., 31(4), 1054-1061, Apr. 1997.

CFCs and HCFCs, presumably from discarded refrigeration equipment, were among the more than 140 compounds measured in emissions. Extrapolation to all landfills in the U.K. suggests an upper limit to emissions of CFCs and HCFCs of 1,000 metric tons annually; the actual amount is somewhat less because of thermal destruction by landfill gas engines and flare stacks.

Item #d97sep6

"Biodegradability of Municipal Solid Waste Components in Laboratory-Scale Landfills," W.E. Eleazer,..M.A. Barlaz (Dept. Civil Eng., Box 7908, North Carolina State Univ., Raleigh NC 27695; e-mail: barlaz@eos.ncsu.edu),Environ. Sci. & Technol., 31(3), 911-917, Mar.1997.

Reports on laboratory tests designed to relate methane production in landfills to specific materials (grass, food waste, and various types of paper). Many confounding factors precluded establishing a quantitative relationship.