Methane Emissions at Nine Landfill Sites in the Northeastern United

ranged from a low of 9.1 g of CH4 m-2 d-1 at a closed 20- ha site with active gas .... leachate catchment facilities and to determine if off-site migr...
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Environ. Sci. Technol. 1999, 33, 2088-2094

Methane Emissions at Nine Landfill Sites in the Northeastern United States BYARD W. MOSHER,* PETER M. CZEPIEL, AND ROBERT C. HARRISS† Complex Systems Research Center, University of New Hampshire, Durham, New Hampshire 03824 JOANNE H. SHORTER, CHARLES E. KOLB, AND J. BARRY MCMANUS Center for Atmospheric and Environmental Chemistry, Aerodyne Research, Inc., Billerica, Massachusetts 01821 EUGENE ALLWINE AND BRIAN K. LAMB Laboratory for Atmospheric Research, Department of Civil & Environmental Engineering, Washington State University, Pullman, Washington 99164-2910

Methane emissions were measured at nine U.S. landfill sites using chamber and/or tracer flux techniques. These flux measurement methodologies were compared at two sites, and excellent agreement (