This data represents processed data from chemical ionization time of flight mass spectrometry instrument used to generate each figure in the manuscript. A data dictionary is included in the dataset. This dataset is associated with the following publication: Mattila, J., J. Krug, W. Roberson, R. Burnette, S. McDonald, P. Virtaranta, J. Offenberg, and W. Linak. Characterizing volatile emissions and combustion by-products from aqueous film-forming foams using online chemical ionization mass spectrometry. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 0, (2024).

CIMS calibration curves for the FTOHs and other PFAS for which standards were available. PFOA signals during calibrations and sampling. CIMS unit mass resolution difference mass spectrum for one commercial sample. Molecular composition assignment isotopic distributions. and a. This dataset is associated with the following publication: Riedel, T., J. Lang, M. Strynar, A. Lindstrom, and J. Offenberg. Gas-Phase Detection of Fluorotelomer Alcohols and Other Oxygenated Per- and Polyfluoroalkyl Substances by Chemical Ionization Mass Spectrometry. Environmental Science & Technology Letters. American Chemical Society, Washington, DC, USA, 6(5): 289-293, (2019).

Per- and polyfluoroalkyl substances (PFAS) are environmental contaminants of emerging concern. The temperature dependent gas-solid reaction of four gas-phase PFAS compounds (fluorotelomer alcohols or FTOHS) with calcium oxide is examined. This reaction shows potential as a PFAS disposal method that forms a stable and environmentally friendly end product, calcium fluoride. In addition to monitoring the destruction of the primary PFAS compound, byproducts of the thermal treatment reaction are identified and monitored to determine whether such products of incomplete destruction, which could also be a source of PFAS in the environment, are removed during the treatment process. This dataset is associated with the following publication: Riedel, T., A. Wallace, E. Shields, J. Ryan, C. Lee, and B. Linak. Low Temperature Thermal Treatment of Gas-Phase Fluorotelomer Alcohols by Calcium Oxide. CHEMOSPHERE. Elsevier Science Ltd, New York, NY, USA, 272: 0, (2021).

The dataset provided here documents the information used to generate figures for "Characterizing the Air Emissions, Transport, and Deposition of Per- and Polyfluoroalkyl Substances from a Fluoropolymer Manufacturing Facility" published in Environmental Science and Technology. This dataset is associated with the following publication: D'Ambro, E., H. Pye, J. Bash, J. Boyer, C. Allen, C. Efstathiou, R. Gilliam, L. Reynolds, K. Talgo, and B. Murphy. Characterizing the air emissions, transport, and deposition of per- and polyfluoroalkyl substances from a fluoropolymer manufacturing facility. International Journal of Environmental Science and Technology. Springer, Heidelburg, GERMANY, 55(2): 862-870, (2021).

Datafiles in TXT file formats listing PFAS chemicals and a list of all PFAS Chemical Lists publicly available on the CompTox Chemicals Dashboard. This dataset is associated with the following publication: Williams, A., L. Gaines, C. Grulke, C. Lowe, G. Sinclair, V. Samano, I. Thillainadarajah, B. Meyer, G. Patlewicz, and A. Richard. Assembly and Curation of Lists of Per- and Polyfluoroalkyl Substances (PFAS) to Support Environmental Science Research. Frontiers in Environmental Science. Frontiers, Lausanne, SWITZERLAND, 10: 850019, (2022).

This is the PFAS concentrations in the various samples analyzed. These concentrations were used to creat the various graphs and tables in the associated manuscript. This dataset is associated with the following publication: Chen, Y., H. Zhang, Y. Liu, J. Bowden, T. Tolaymat, T. Townsend, and H. Solo-Gabriele. Evaluation of Per- and Polyfluoroalkyl Substances (PFAS) in Leachate, Gas Condensate, Stormwater and Groundwater at Landfills. CHEMOSPHERE. Elsevier Science Ltd, New York, NY, USA, 318: 137903, (2023).

Fluorine measurements for target PFAS and PFAS mixtures, fluorine mass balance calculations, non-targeted compound abundances. This dataset is not publicly accessible because: All data not included in the manuscript supplemental information is property of Harvard University. It can be accessed through the following means: Contact: Elsie Sunderland (ems@seas.harvard.edu). Format: Manuscript supplemental information contains tables of outputs of various assays in terms of concentrations. This dataset is associated with the following publication: Ruyle, B.J., C.P. Thackray, J. McCord, M. Strynar, K.A. Mauge-Lewis, S.E. Fenton, and E.M. Sunderland. Reconstructing the Composition of Per- and Polyfluoroalkyl Substances in Contemporary Aqueous Film-Forming Foams. Environmental Science & Technology Letters. American Chemical Society, Washington, DC, USA, 8(1): 59-65, (2021).

This dataset contains data from nontargeted analysis of the OTM-45 extracts obtained during the incineration of PFAS containing AFFF. The data was used to create Figure 2 in the associated manuscript. The Figure uses the sums of the peak areas to create a bar graph show relative peak areas of fluorinated features for each of the incineration conditions studied. The peak areas for the features identified as PFAS that are targeted for typical analyses were plotted along with the total areas to show how many of the features fall outside of typical PFAS analyses. This dataset is associated with the following publication: Shields, E., J. Krug, W. Roberson, S. Jackson, M. Smeltz, M. Allen, R.(. Burnette, J. Nash, L. Virtaranta, W. Preston, H. Liberatore, A. Wallace, J. Ryan, P. Kariher, P. Lemieux, and B. Linak. Pilot‐Scale Thermal Destruction of Per‐ and Polyfluoroalkyl Substances in a Legacy Aqueous Film Forming Foam. ACS ES&T Engineering. American Chemical Society, Washington, DC, USA, 3(9): 1308–1317, (2023).

This dataset includes values used to generate Figure 1, 2, and 3 in the manuscript. Figure 1 is a diagram of the incinerator with residence times and associated temperatures. Figure 2 is a temperature versus residence time plot for each of the firing rates. Figure 3 is FTIR data used to generate time series plots of concentrations. This dataset is associated with the following publication: Krug, J., P. Lemieux, C. Lee, J. Ryan, P. Kariher, E. Shields, L. Wickersham, M. Denison, K. Davis, D. Swensen, R. Burnette, J. Wendt, and W. Linak. Combustion of C1 and C2 PFAS: Kinetic Modeling and Experiments, February 2022. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION. Air & Waste Management Association, Pittsburgh, PA, USA, 72(3): 256-270, (2022).

the data include results of PFAS concentration in primary and secondary landfill leachate. Each figure in the manuscript has a specific sheet associated with it. This dataset is associated with the following publication: Robey, N., Y. Liu, T. Tolaymat, J. Bowden, H. Solo-Gabriele, and T. Townsend. Per- and Polyfluoroalkyl Substances (PFAS) Profiles in Primary and Secondary Landfill Leachates: Indications of Transformation, Liner Interactions, and other PFAS Sources. JOURNAL OF HAZARDOUS MATERIALS. Elsevier Science Ltd, New York, NY, USA, 494: 138705, (2025).