A Robust Method for Estimating Landfill Methane Emissions

Authors

    Authors

    V. K. Figueroa; K. R. Mackie; N. Guarriello;C. D. Cooper

    Comments

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    Abbreviated Journal Title

    J. Air Waste Manage. Assoc.

    Keywords

    GAS EMISSIONS; Engineering, Environmental; Environmental Sciences; Meteorology &; Atmospheric Sciences

    Abstract

    Because municipal solid waste (MSW) landfills emit significant amounts of methane, a potent greenhouse gas, there is considerable interest in quantifying surficial methane emissions from landfills. The authors present a method to estimate methane emissions, using ambient air volatile organic compound (VOC) measurements taken above the surface of the landfill. Using a hand-held monitor, hundreds of VOC concentrations can be taken easily in a day, and simple meteorological data can be recorded at the same time. The standard Gaussian dispersion equations are inverted and solved by matrix methods to determine the methane emission rates at hundreds of point locations throughout a MSW landfill. These point emission rates are then summed to give the total landfill emission rate. This method is tested on a central Florida MSW landfill using data from 3 different days, taken 6 and 12 months apart. A sensitivity study is conducted, and the emission estimates are most sensitive to the input meteorological parameters of wind speed and stability. class. Because of the many measurements that are used, the results are robust. When the emission estimates were used as inputs into a dispersion model, a reasonable scatterplot fit of the individual concentration measurement data resulted.

    Journal Title

    Journal of the Air & Waste Management Association

    Volume

    59

    Issue/Number

    8

    Publication Date

    1-1-2009

    Document Type

    Article

    Language

    English

    First Page

    925

    Last Page

    935

    WOS Identifier

    WOS:000268650800003

    ISSN

    1096-2247

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