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<br /> <br />April 2013 6 Rosenfeld CV <br /> <br /> <br /> <br />Client: CIWMB (Sacramento, California) <br />Used dispersion models to estimate traveling distance and VOC concentrations downwind from a composting <br />facility for the California Integrated Waste Management Board. <br /> <br />Client: Carboquimeca (Bogotá, Columbia) <br />Evaluated exposure pathways for human health risk assessment for a confidential client focusing on significant <br />concentrations of arsenic and chlorinated solvents present in groundwater used for drinking water. <br /> <br />Client: Navy Base Realignment and Closure Team (Treasure Island, California) <br />Used Johnson-Ettinger model to estimate indoor air PCB concentrations and compared estimated values with <br />empirical data collected in homes. <br /> <br />Client: San Diego State University (San Diego, California) <br />Measured CO2 flux from soils amended with different quantities of biosolids compost at Camp Pendleton to <br />determine CO2 credit values for coastal sage under fertilized and non-fertilized conditions. <br /> <br />Client: Navy Base Realignment and Closure Team (MCAS Tustin, California) <br />Evaluated cumulative risk of a multiple pathway scenario for a child resident and a construction worker. Evaluated <br />exposure to air and soil via particulate and vapor inhalation, incidental soil ingestion, and dermal contact with soil. <br /> <br />Client: MCAS Miramar (San Diego, California) <br />Evaluated exposure pathways of metals in soil by comparing site data to background data. Risk assessment <br />incorporated multiple pathway scenarios assuming child resident and construction worker particulate and vapor <br />inhalation, soil ingestion, and dermal soil contact. <br /> <br />Client: Naval Weapons Station (Seal Beach, California) <br />Used a multiple pathway model to generate dust emission factors from automobiles driving on dirt roads. Calculated <br />bioaccumulation of metals, PCBs, dioxin congeners and pesticides to estimate human and ecological risk. <br /> <br />Client: King County, Douglas County (Washington State) <br />Measured PM10 and PM2.5 emissions from windblown soil treated with biosolids and a polyacrylamide polymer in <br />Douglas County, Washington. Used Pilat Mark V impactor for measurement and compared data to EPA particulate <br />regulations. <br /> <br />Client: King County (Seattle, Washington) <br />Created emission inventory for several compost and wastewater facilities comparing VOC, particulate, and fungi <br />concentrations to NIOSH values estimating risk to workers and individuals at neighboring facilities. <br /> <br />Air Pollution Investigation and Remediation <br /> <br />Client: Republic Landfill (Santa Clarita, California) <br />Managed a field investigation of odor around a landfill during 30+ events. Used hedonic tone, butanol scale, <br />dilution-to-threshold values, and odor character to evaluate odor sources and character and intensity. <br /> <br />Client: California Biomass (Victorville, California) <br />Managed a field investigation of odor around landfill during 9+ events. Used hedonic tone, butanol scale, dilution- <br />to-threshold values, and odor character to evaluate odor sources, character and intensity. <br /> <br />Client: ABT-Haskell (Redlands, California) <br />Assisted in permitting a compost facility that will be completely enclosed with a complex scrubbing system using <br />acid scrubbers, base scrubbers, biofilters, heat exchangers and chlorine to reduce VOC emissions by 99 percent. <br /> <br />Client: Synagro (Corona, California) <br />Designed and monitored 30-foot by 20-foot by 6-foot biofilter for VOC control at an industrial composting facility <br />in Corona, California to reduce VOC emissions by 99 percent. <br /> <br />155