Emissions of H2S from construction and demolition (C&D) landfills can result in odors that are a significant nuisance to nearby neighborhoods and businesses. As population in Florida continues to grow and create development pressures, housing is built closer to existing landfills. This research project was undertaken to develop a detailed modeling methodology for use by counties and others to provide an objective and scientifically defensible methodology to establish odor buffer zones around C&D landfills.  This research project started in June of 2009, as a two-year project, but the second year was not funded. This project built on a previous Hinkley Center-funded project that developed a technique for estimating methane (and odorous gas) emissions from municipal solid waste (MSW) landfills. This technique used hundreds of ambient methane concentrations at a landfill, and applied matrix inversion mathematics to back-solve the dispersion equations. The current project measured H2S concentrations at a C&D landfill, and used those same techniques to determine the H2S emission rates from the landfill, which were then used to model H2S odor buffer distances.


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