1. Dataset Title: Emissions of Organic Compounds from Produced Water Ponds 2. Name and contact information of PI: a. Name: Seth Lyman, PhD b. Institution: Utah State University c. Address: 320 N. Aggie Blvd., Vernal, UT 84078 d. Email Address: seth.lyman@usu.edu or sethnlyman@gmail.com e. ORCiD ID: orcid.org/0000-0001-8493-9522 6. Funding source: This work was funded by the Research Partnership to Secure Energy for America/U.S. Department of Energy National Energy Technology Laboratory (Contract No. 12122-15), the State of Wyoming, the Uinta Impact Mitigation Special Service District, the Utah Legislature, and the Utah School and Institutional Trust Lands Administration. 7. Project summary, description or abstract: We measured fluxes of methane, a suite of non-methane hydrocarbons (C2-C11), light alcohols, and carbon dioxide from oil and gas produced water storage and disposal ponds in Utah (Uinta Basin) and Wyoming (Upper Green River Basin) United States during 2013-2016. In this paper, we discuss the characteristics of produced water composition and air-water fluxes, with a focus on flux chamber measurements. In companion papers, we will (1) report on inverse modeling methods used to estimate emissions from produced water ponds, including comparisons with flux chamber measurements, and (2) discuss the development of mass transfer coefficients to estimate emissions and place emissions from produced water ponds in the context of all regional oil and gas-related emissions. Alcohols (made up mostly of methanol) were the most abundant organic compound group in produced water (91% of total volatile organic concentration, with upper and lower 95% confidence levels of 89 and 93%) but accounted for only 34% (28 to 41%) of total organic compound fluxes from produced water ponds. Non-methane hydrocarbons, which are much less water-soluble than methanol and less abundant in produced water, accounted for the majority of emitted organics. C6-C9 alkanes and aromatics dominated hydrocarbon fluxes, perhaps because lighter hydrocarbons had already volatilized from produced water prior to its arrival in storage or disposal ponds, while heavier hydrocarbons are less water soluble and less volatile. Fluxes of formaldehyde and other carbonyls were low (1% (1 to 2%) of total organic compound flux). The speciation and magnitude of fluxes varied strongly across the facilities measured and with the amount of time water had been exposed to the atmosphere. The presence or absence of ice also impacted fluxes. 8. Brief description of collection and processing of data: See associated publication for information. 9. Description of files (names, or if too numerous, number of files, file type(s): Three files are included: a. Prodwat_fluxchamber.csv contains flux measurements from produced water ponds collected with a flux chamber. Zeros indicate non detects. -- means no data, either because that constituent wasn't measured or because the measurement was unsuccessful. b. Prodwat_fluxchamber_windcorr.csv contains flux measurements from produced water ponds collected with a flux chamber. These data have been corrected for an apparent wind speed bias caused by the flux chamber. Details about the correction are available in Mansfield et al. (2018; see item 14 below). Zeros indicate non detects. -- means no data, either because that constituent wasn't measured or because the measurement was unsuccessful. c. Prodwat_fluxchamber_waterdata.csv contains flux measurements (not corrected for wind) and, on the same rows, measurements of water composition that were collected near the flux measurements. 10. Definition of acronyms, codes, and abbreviations: 11. Description or definition any other unique information that would help others use your data: 12. Descriptions of parameters/variables a. Prodwat_fluxchamber.csv and Prodwat_fluxchamber_windcorr.csv: UniqueID Unique ID of each flux measurement Can Set # The incremental number of the measurement, starting with 1 for the first sample of the day Date and Time Start date and time of of flux measurement Date and Time End date and time of flux measurement Duration Duration of the measurement in min CH4 Flux Flux of methane in mg/m2/hr CO2 Flux Flux of carbon dioxide in mg/m2/hr InH2Otemp water temperature inside the flux chamber in deg C outH2O temp water temperature just outside the flux chamber deg C inAirtemp air temperature inside the flux chamber in deg C OutAirTemp air temperature just outside the flux chamber in deg C AmbientTemp Ambient temperature in Deg C (measured at 6 m from the measurement trailer) Amb RH Ambient relative humidity in % (measured at 6 m from the measurement trailer) Dewpoint Ambient dew point temperature in Deg C (measured at 6 m from the measurement trailer) Solar Rad solar radiation in W/m^2 (measured at 6 m from the measurement trailer) pressure atmospheric pressure in mbar (measured at 6 m from the measurement trailer) Wind speed wind speed in meters/second (measured at 6 m from the measurement trailer) Wind Dir wind direction in degrees (measured at 6 m from the measurement trailer) StDevWindDir standard deviation of wind direction in Deg (measured at 6 m from the measurement trailer) SoilH2OCntnt soil water content in % by volume (not relevant for this dataset) SoilEC soil electrical conductivity in dS/m (not relevant for this dataset) SoilTemp soil temperature in Deg c (not relevant for this dataset) TNMHC (no MeOH) Flux of total non-methane hydrocarbons in mg/m2/hr. This is the total of all the individual NMHC measured in other columns. Alkanes Flux of total alkanes in mg/m2/hr. This is the total of all the individual alkanes measured in other columns. Alkenes Flux of total alkenes in mg/m2/hr. This is the total of all the individual alkenes measured in other columns. Aromatics Flux of total aromatics in mg/m2/hr. This is the total of all the individual aromatics measured in other columns. Alcohols Flux of total alcohols in mg/m2/hr. This is the total of all the individual alcohols measured in other columns. Carbonyls Flux of total carbonyls in mg/m2/hr. This is the total of all the individual carbonyls measured in other columns. Ethane Ethane flux in mg/m2/h Ethylene Ethylene flux in mg/m2/h Propane Propane flux in mg/m2/h Propylene Propylene flux in mg/m2/h Iso-butane Iso-butane flux in mg/m2/h N-butane N-butane flux in mg/m2/h Acetylene Acetylene flux in mg/m2/h Trans-2-Butene Trans-2-Butene flux in mg/m2/h 1-Butene 1-Butene flux in mg/m2/h Cis-2-butene Cis-2-butene flux in mg/m2/h isopentane isopentane flux in mg/m2/h n-pentane n-pentane flux in mg/m2/h trans-2-pentene trans-2-pentene flux in mg/m2/h 1-pentene 1-pentene flux in mg/m2/h cis-2-pentene cis-2-pentene flux in mg/m2/h 2,2-dimethylbutane 2,2-dimethylbutane flux in mg/m2/h cyclopentane/2,3-dimethylbutane sum of cyclopentane and 2,3-dimethylbutane flux in mg/m2/h 2-methylpentane 2-methylpentane flux in mg/m2/h 3-methylpentane 3-methylpentane flux in mg/m2/h Isoprene Isoprene flux in mg/m2/h 1-Hexene 1-Hexene flux in mg/m2/h n-Hexane n-Hexane flux in mg/m2/h Methylcyclopentane Methylcyclopentane flux in mg/m2/h 2,4-Dimethylpentane 2,4-Dimethylpentane flux in mg/m2/h Benzene Benzene flux in mg/m2/h Cyclohexane Cyclohexane flux in mg/m2/h 2-Methylhexane 2-Methylhexane flux in mg/m2/h 2,3-Dimethylpentane 2,3-Dimethylpentane flux in mg/m2/h 3-Methylhexane 3-Methylhexane flux in mg/m2/h 2,2,4-Trimethylpentane 2,2,4-Trimethylpentane flux in mg/m2/h n-Heptane n-Heptane flux in mg/m2/h Methylcyclohexane Methylcyclohexane flux in mg/m2/h 2,3,4-Trimethylpentane 2,3,4-Trimethylpentane flux in mg/m2/h Toluene Toluene flux in mg/m2/h 2-Methylheptane 2-Methylheptane flux in mg/m2/h 3-Methylheptane 3-Methylheptane flux in mg/m2/h n-Octane n-Octane flux in mg/m2/h Ethylbenzene Ethylbenzene flux in mg/m2/h m&p-Xylene m&p-Xylene flux in mg/m2/h Styrene Styrene flux in mg/m2/h o-Xylene o-Xylene flux in mg/m2/h n-Nonane n-Nonane flux in mg/m2/h iso-Propylbenzene iso-Propylbenzene flux in mg/m2/h n-Propbylbenzene n-Propbylbenzene flux in mg/m2/h m-Ethyltoluene m-Ethyltoluene flux in mg/m2/h p-Ethyltoluene p-Ethyltoluene flux in mg/m2/h 1,3,5-Trimethylbenzene 1,3,5-Trimethylbenzene flux in mg/m2/h o-Ethyltoluene o-Ethyltoluene flux in mg/m2/h 1,2,4-Trimethylbenzene 1,2,4-Trimethylbenzene flux in mg/m2/h n-Decane n-Decane flux in mg/m2/h 1,2,3-Trimethylbenzene 1,2,3-Trimethylbenzene flux in mg/m2/h m-Diethylbenzene m-Diethylbenzene flux in mg/m2/h p-Diethylbenzene p-Diethylbenzene flux in mg/m2/h n-Undecane n-Undecane flux in mg/m2/h n-Dodecane n-Dodecane flux in mg/m2/h Methanol Methanol flux in mg/m2/h ethanol ethanol flux in mg/m2/h isopropanol isopropanol flux in mg/m2/h formaldehyde formaldehyde flux in mg/m2/h acetaldehyde acetaldehyde flux in mg/m2/h acrolein/acetone acrolein/acetone flux in mg/m2/h propinalehyde propinalehyde flux in mg/m2/h crotonaldehyde crotonaldehyde flux in mg/m2/h butyraldehyde butyraldehyde flux in mg/m2/h benzaldehyde benzaldehyde flux in mg/m2/h valeraldehyde valeraldehyde flux in mg/m2/h p-tolualdehyde p-tolualdehyde flux in mg/m2/h hexaldehyde hexaldehyde flux in mg/m2/h Facility ID Letter ID for each facility sampled Medium Type of surface sampled PondType type of pond sampled. For more information about pond types used, see Lyman et al., 2018 (ref below) State State in which measurements were collected NOTES Notes about samples **-- means no data, either because that constituent wasn't measured or because the measurement was unsuccessful. **all available data are included, including those with values below the detection limit. for a discussion of detection limits, see the associated paper (Lyman et al., 2018). b. Prodwat_fluxchamber_waterdata.csv: Same as a., except for these additional variables: m_fromchamber distance in meters from the flux chamber measurement location to the water sampling location. days_btwn_samples days between flux chamber measurement and water sampling measurement UniqueID_w unique ID of each water sample Date date of water sampling Time time of water sampling Temperature water temperature at time of sampling in deg C SpCond specific conductivity in µS/cm TDS total dissolved solids in mg/L ODO percent oxygen saturation pH pH ORP redox potential in mV Turbidity turbidity in FNU TOC=TC-IC total organic carbon (calculated as the difference between total carbon and inorganic carbon) in mg/L TC total carbon in mg/L IC inorganic carbon in mg/L MPN most probable number of culturable bacteria in water methane methane concentration in ug/mL ethane ethane concentration in ug/mL propane propane concentration in ug/mL isobutane isobutane concentration in ug/mL n-butane n-butane concentration in ug/mL isopentane isopentane concentration in ug/mL n-pentane n-pentane concentration in ug/mL 2,2-dimethylbutane 2,2-dimethylbutane concentration in ug/mL cyclopentane/2,3-dimethylbutane cyclopentane/2,3-dimethylbutane concentration in ug/mL 2-methylpentane 2-methylpentane concentration in ug/mL 3-methylpentane 3-methylpentane concentration in ug/mL n-hexane n-hexane concentration in ug/mL methylcyclopentane methylcyclopentane concentration in ug/mL 2,4-dimethylpentane 2,4-dimethylpentane concentration in ug/mL benzene benzene concentration in ug/mL cyclohexane cyclohexane concentration in ug/mL 2-methylhexane 2-methylhexane concentration in ug/mL 2,3-dimethylpentane 2,3-dimethylpentane concentration in ug/mL 3-methylhexane 3-methylhexane concentration in ug/mL 2,2,4-trimethylpentane 2,2,4-trimethylpentane concentration in ug/mL n-heptane n-heptane concentration in ug/mL methylcyclohexane methylcyclohexane concentration in ug/mL 2,3,4-trimethylpentane 2,3,4-trimethylpentane concentration in ug/mL toluene toluene concentration in ug/mL 2-methylheptane 2-methylheptane concentration in ug/mL 3-methylheptane 3-methylheptane concentration in ug/mL n-octane n-octane concentration in ug/mL ethylbenzene ethylbenzene concentration in ug/mL m/p-xylene m/p-xylene concentration in ug/mL o-xylene o-xylene concentration in ug/mL n-nonane n-nonane concentration in ug/mL n-propylbenzene n-propylbenzene concentration in ug/mL 1-ethyl-3-methylbenzene 1-ethyl-3-methylbenzene concentration in ug/mL 1-ethyl-4-methylbenzene 1-ethyl-4-methylbenzene concentration in ug/mL 1,3,5-trimethylbenzene 1,3,5-trimethylbenzene concentration in ug/mL 1,2,4-trimethylbenzene 1,2,4-trimethylbenzene concentration in ug/mL n-decane n-decane concentration in ug/mL 1,2,3-trimethylbenzene 1,2,3-trimethylbenzene concentration in ug/mL 1,3-diethylbenzene 1,3-diethylbenzene concentration in ug/mL 1,2-diethylbenzene 1,2-diethylbenzene concentration in ug/mL methanol methanol concentration in ug/mL ethanol ethanol concentration in ug/mL isopropanol isopropanol concentration in ug/mL 4-Isopropyltoluene 4-Isopropyltoluene concentration in ug/mL Acetone Acetone concentration in ug/mL Acrolein Acrolein concentration in ug/mL Acrylonitrile Acrylonitrile concentration in ug/mL Butyl acetate Butyl acetate concentration in ug/mL Carbon disulfide Carbon disulfide concentration in ug/mL Cyclohexanone Cyclohexanone concentration in ug/mL Ethyl methacrylate Ethyl methacrylate concentration in ug/mL Isopropylbenzene Isopropylbenzene concentration in ug/mL Methyl Acetate Methyl Acetate concentration in ug/mL n-Butyl alcohol n-Butyl alcohol concentration in ug/mL Naphthalene Naphthalene concentration in ug/mL tert-Butyl alcohol tert-Butyl alcohol concentration in ug/mL tert-Butylbenzene tert-Butylbenzene concentration in ug/mL Acetaldehyde Acetaldehyde concentration in ug/mL Formaldehyde Formaldehyde concentration in ug/mL NOTES Notes about sample Laboratory laboratory that analyzed sample. See Lyman et al. (2018) for more information about the laboratories that were used. 14. Publications that cite or use this data: Lyman, S. N., Mansfield, M. L., Tran, H. N., Evans, J. D., Jones, C., O'Neil, T., ... & Keslar, C. (2018). Emissions of organic compounds from produced water ponds I: Characteristics and speciation. Sci. Total Environ., 619, 896-905. Mansfield, M.L., Tran, H.N.Q., Lyman, S.N., Smith, A., Bowers, R., 2017. Emissions of organic compounds from produced water ponds III: mass-transfer coefficients, composition-emission correlations, and contributions to regional emissions. Sci. Total Environ. Under Review. Tran, H.N.Q., Lyman, S.N., Mansfield, M.L., O'Neil, T., 2017. Emissions of organic compounds from produced water ponds II: evaluation of flux-chamber measurements with inverse-modeling techniques. J. Air Waste Manage. Assoc. Under Review.