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EVALUATION OF A FORMER LANDFILL SITE IN FORT COLLINS, COLORADO USING GROUND-BASED OPTICAL REMOTE SENSING TECHNOLOGY
Citation:
MODRAK, M., R. HASHMONAY, R. VARMA, AND R. KAGANN. EVALUATION OF A FORMER LANDFILL SITE IN FORT COLLINS, COLORADO USING GROUND-BASED OPTICAL REMOTE SENSING TECHNOLOGY. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-05/042 (NTIS PB2006-102403), 2005.
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Description:
This report details a measurement campaign conducted using the Radial Plume Mapping (RPM) method and optical remote sensing technologies to characterize fugitive emissions. This work was funded by EPA′s Monitoring and Measurement for the 21st Century Initiative, or 21M2. The site selected is a former landfill site that is currently comprised of a commercial area, a park, playgrounds, soccer fields, and bike paths. The City of Fort Collins is interested in developing a larger recreational facility at the site, and received assistance from EPA Region 8, under the Targeted Brownfields Assessment program, to perform a site assessment for methane and air toxics. Open Path Fourier Transform Infrared (OP-FTIR), Open-Path Tunable Diode Laser Absorption Spectroscopy (OP-TDLAS), and Ultra-Violet Differential Optical Absorption Spectrometer (UV-DOAS) instruments were used to provide data on background and surface emissions. The RPM method was used to produce surface concentration contour maps to locate surface emissions hot spots, and determine the downwind mass emission flux from the site. These data will be used to make decisions about future recreational development at the site.