Greenhouse gas reporting data improves understanding of regional climate impact on landfill methane production and collection

Pradeep Jain, James Wally, Timothy G Townsend, Max Krause and Thabet Tolaymat

PLOS ONE, 2021, vol. 16, issue 2, 1-15

Abstract: A critical examination of the US Environmental Protection Agency’s (US EPA’s) Greenhouse Gas Reporting Program (GHGRP) database provided an opportunity for the largest evaluation to date of landfilled waste decomposition kinetics with respect to different US climate regimes. In this paper, 5–8 years of annual methane collection data from 114 closed landfills located in 29 states were used to estimate site-specific waste decay rates (k) and methane collection potentials (Lc). These sites account for approximately 9% of all landfills required to report GHG emissions to the US EPA annually. The mean methane collection potential (Lc) for the sites located in regions with less than 635 mm (25 in) annual rainfall was significantly (p 1,016 mm (40 in) year-1). The data suggest that waste is decaying faster than the model default values, which in turn suggests that a larger fraction of methane is produced during a landfill’s operating life (relative to post-closure).

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0246334

DOI: 10.1371/journal.pone.0246334

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