The widespread use of copper-treated lumber has increased the potential for human exposure. Moreover, there is a lack of information on the fate and behavior of copper-treated wood particles following oral ingestion. In this study, the in vitro bioaccessibility of copper from copper-treated wood dust in simulated stomach fluid and DI water was determined. Three copper-treated wood products, liquid alkali copper quaternary and two micronized copper quarternary from different manufacturers, were incubated in the extraction media then fractionated by centrifugation and filtration through 0.45 m and 10 kDa filters. The copper concentrations from isolated fractions were measured using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). Total amounts of copper from each wood product were also determined using microwave-assisted acid digestion of dried wood samples and quantification using ICP-OES. The percent in vitro bioaccessible copper was between 83 and 90 % for all treated wood types. However, the percent of copper released in DI water was between 14 and 25 % for all wood products. This data suggests that copper is highly bioaccessible at low pH and may pose a potential human exposure risk upon ingestion. This dataset is associated with the following publication: Santiago-Rodrigues, L., J.L. Griggs, K. Bradham , C. Nelson , T. Luxton , W. Platten , and K. Rogers. Assessment of the bioaccessibility of micronized copper wood in synthetic stomach fluid. Environmental Nanotechnology, Monitoring and Management. Elsevier B.V., Amsterdam, NETHERLANDS, 4: 85-92, (2015).

Estimates of the final amount and final disposition of materials generated in the Construction and Demolition waste stream measured in total mass of each material. Traditional C&D materials included are concrete, asphalt pavement, asphalt shingles, bricks and clay, metal, wood, and gypsum drywall. Non-traditional materials in this stream include cardboard, organics, carpet, glass, plastic, and fines. The estimates are based on generation amounts described in the EPA SMM Facts and Figures reports. The method used to estimate final disposition is called CDDpath. This dataset is associated with the following publication: Townsend, T., W. Ingwersen, B. Niblick, P. Jain, and J. Wally. CDDPath: A method for quantifying the loss and recovery of construction and demolition debris in the United States. WASTE MANAGEMENT. Elsevier Science Ltd, New York, NY, USA, 84: 302-309, (2019).

No dataset available. This dataset is not publicly accessible because: The dataset was never touched by EPA employees. Data was collected, analyzed, and maintained solely by non-EPA collaborators. It can be accessed through the following means: Dataset can be accessed by contacting the senior PI on the research effort, Kristina Whitworth (Kristina.W.Whitworth@uth.tmc.edu). Format: Dataset was handled solely by non-EPA collaborators on this research effort. EPA employee role on this research effort was purely advisory. This dataset is associated with the following publication: Misra, A., M. Longnecker, K. Dionisio, R. Bornman, G. Travlos, S. Brar, and K. Whitworth. Household fuel use and biomarkers of inflammation and respiratory illness among rural South African Women. ENVIRONMENTAL RESEARCH. Academic Press Incorporated, Orlando, FL, USA, 166: 112-116, (2018).

Monthly and annual data on renewable energy, i.e., biomass, geothermal, hydropower, solar, and wind. Also data on alternative transportation fuels, i.e., hydrogen, natural gas, propane, ethanol, and electricity. Data on renewable energy production, consumption, electricity generation, and consumption by end-use sector.