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Joseph N Ryan

TitleProfessor
InstitutionUniversity of Colorado Boulder
DepartmentCivilEng-Civil,Env&Arch Engin
Phone303/492-0772
    Other Positions
    TitleAssoc Director-Faculty
    InstitutionUniversity of Colorado Boulder
    DepartmentCollege Engineering & App Sci


    Collapse Bibliographic 
    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Lackey G, Pfander I, Gardiner J, Sherwood OA, Rajaram H, Ryan JN, Dilmore RM, Thomas B. Composition and Origin of Surface Casing Fluids in a Major US Oil- and Gas-Producing Region. Environ Sci Technol. 2022 12 06; 56(23):17227-17235. PMID: 36379467.
      View in: PubMed
    2. DiGiulio DC, Rossi RJ, Jaeger JM, Shonkoff SBC, Ryan JN. Vulnerability of Groundwater Resources Underlying Unlined Produced Water Ponds in the Tulare Basin of the San Joaquin Valley, California. Environ Sci Technol. 2021 11 02; 55(21):14782-14794. PMID: 34651501.
      View in: PubMed
    3. Lackey G, Rajaram H, Bolander J, Sherwood OA, Ryan JN, Shih CY, Bromhal GS, Dilmore RM. Public data from three US states provide new insights into well integrity. Proc Natl Acad Sci U S A. 2021 04 06; 118(14). PMID: 33753556.
      View in: PubMed
    4. Stanish LF, Sherwood OA, Lackey G, Osborn S, Robertson CE, Harris JK, Pace N, Ryan JN. Microbial and Biogeochemical Indicators of Methane in Groundwater Aquifers of the Denver Basin, Colorado. Environ Sci Technol. 2021 01 05; 55(1):292-303. PMID: 33296185.
      View in: PubMed
    5. Poulin BA, Ryan JN, Tate MT, Krabbenhoft DP, Hines ME, Barkay T, Schaefer J, Aiken GR. Geochemical Factors Controlling Dissolved Elemental Mercury and Methylmercury Formation in Alaskan Wetlands of Varying Trophic Status. Environ Sci Technol. 2019 06 04; 53(11):6203-6213. PMID: 31090422.
      View in: PubMed
    6. Rogers JD, Thurman EM, Ferrer I, Rosenblum JS, Evans MV, Mouser PJ, Ryan JN. Degradation of polyethylene glycols and polypropylene glycols in microcosms simulating a spill of produced water in shallow groundwater. Environ Sci Process Impacts. 2019 Feb 21; 21(2):256-268. PMID: 30318550.
      View in: PubMed
    7. Entrekin S, Trainor A, Saiers J, Patterson L, Maloney K, Fargione J, Kiesecker J, Baruch-Mordo S, Konschnik K, Wiseman H, Nicot JP, Ryan JN. Water Stress from High-Volume Hydraulic Fracturing Potentially Threatens Aquatic Biodiversity and Ecosystem Services in Arkansas, United States. Environ Sci Technol. 2018 02 20; 52(4):2349-2358. PMID: 29383932.
      View in: PubMed
    8. Poulin BA, Gerbig CA, Kim CS, Stegemeier JP, Ryan JN, Aiken GR. Effects of Sulfide Concentration and Dissolved Organic Matter Characteristics on the Structure of Nanocolloidal Metacinnabar. Environ Sci Technol. 2017 Nov 21; 51(22):13133-13142. PMID: 29032673.
      View in: PubMed
    9. Rogers JD, Ferrer I, Tummings SS, Bielefeldt AR, Ryan JN. Inhibition of Biodegradation of Hydraulic Fracturing Compounds by Glutaraldehyde: Groundwater Column and Microcosm Experiments. Environ Sci Technol. 2017 Sep 05; 51(17):10251-10261. PMID: 28780853.
      View in: PubMed
    10. Rosenblum J, Nelson AW, Ruyle B, Schultz MK, Ryan JN, Linden KG. Temporal characterization of flowback and produced water quality from a hydraulically fractured oil and gas well. Sci Total Environ. 2017 Oct 15; 596-597:369-377. PMID: 28448913.
      View in: PubMed
    11. Poulin BA, Ryan JN, Nagy KL, Stubbins A, Dittmar T, Orem W, Krabbenhoft DP, Aiken GR. Spatial Dependence of Reduced Sulfur in Everglades Dissolved Organic Matter Controlled by Sulfate Enrichment. Environ Sci Technol. 2017 04 04; 51(7):3630-3639. PMID: 28248098.
      View in: PubMed
    12. Lackey G, Rajaram H, Sherwood OA, Burke TL, Ryan JN. Surface Casing Pressure As an Indicator of Well Integrity Loss and Stray Gas Migration in the Wattenberg Field, Colorado. Environ Sci Technol. 2017 03 21; 51(6):3567-3574. PMID: 28207242.
      View in: PubMed
    13. Maloney KO, Baruch-Mordo S, Patterson LA, Nicot JP, Entrekin SA, Fargione JE, Kiesecker JM, Konschnik KE, Ryan JN, Trainor AM, Saiers JE, Wiseman HJ. Unconventional oil and gas spills: Materials, volumes, and risks to surface waters in four states of the U.S. Sci Total Environ. 2017 Mar 01; 581-582:369-377. PMID: 28043701.
      View in: PubMed
    14. Sherwood OA, Rogers JD, Lackey G, Burke TL, Osborn SG, Ryan JN. Groundwater methane in relation to oil and gas development and shallow coal seams in the Denver-Julesburg Basin of Colorado. Proc Natl Acad Sci U S A. 2016 07 26; 113(30):8391-6. PMID: 27402747.
      View in: PubMed
    15. Oikonomou PD, Kallenberger JA, Waskom RM, Boone KK, Plombon EN, Ryan JN. Water acquisition and use during unconventional oil and gas development and the existing data challenges: Weld and Garfield counties, CO. J Environ Manage. 2016 Oct 01; 181:36-47. PMID: 27300291.
      View in: PubMed
    16. Thurman EM, Ferrer I, Rosenblum J, Linden K, Ryan JN. Identification of polypropylene glycols and polyethylene glycol carboxylates in flowback and produced water from hydraulic fracturing. J Hazard Mater. 2017 Feb 05; 323(Pt A):11-17. PMID: 26947804.
      View in: PubMed
    17. Webster JP, Kane TJ, Obrist D, Ryan JN, Aiken GR. Estimating mercury emissions resulting from wildfire in forests of the Western United States. Sci Total Environ. 2016 Oct 15; 568:578-586. PMID: 26897612.
      View in: PubMed
    18. Mohanty SK, Saiers JE, Ryan JN. Colloid Mobilization in a Fractured Soil: Effect of Pore-Water Exchange between Preferential Flow Paths and Soil Matrix. Environ Sci Technol. 2016 Mar 01; 50(5):2310-7. PMID: 26829659.
      View in: PubMed
    19. Manceau A, Lemouchi C, Enescu M, Gaillot AC, Lanson M, Magnin V, Glatzel P, Poulin BA, Ryan JN, Aiken GR, Gautier-Luneau I, Nagy KL. Formation of Mercury Sulfide from Hg(II)-Thiolate Complexes in Natural Organic Matter. Environ Sci Technol. 2015 Aug 18; 49(16):9787-96. PMID: 26168020.
      View in: PubMed
    20. Mohanty SK, Saiers JE, Ryan JN. Colloid Mobilization in a Fractured Soil during Dry-Wet Cycles: Role of Drying Duration and Flow Path Permeability. Environ Sci Technol. 2015 Aug 04; 49(15):9100-6. PMID: 26134351.
      View in: PubMed
    21. Poulin BA, Ryan JN, Aiken GR. Effects of iron on optical properties of dissolved organic matter. Environ Sci Technol. 2014 Sep 02; 48(17):10098-106. PMID: 25084347.
      View in: PubMed
    22. Mohanty SK, Saiers JE, Ryan JN. Colloid-facilitated mobilization of metals by freeze-thaw cycles. Environ Sci Technol. 2014 Jan 21; 48(2):977-84. PMID: 24377325.
      View in: PubMed
    23. Writer JH, Antweiler RC, Ferrer I, Ryan JN, Thurman EM. In-stream attenuation of neuro-active pharmaceuticals and their metabolites. Environ Sci Technol. 2013 Sep 03; 47(17):9781-90. PMID: 23952127.
      View in: PubMed
    24. Bielefeldt AR, Stewart MW, Mansfield E, Scott Summers R, Ryan JN. Effects of chlorine and other water quality parameters on the release of silver nanoparticles from a ceramic surface. Water Res. 2013 Aug 01; 47(12):4032-9. PMID: 23582350.
      View in: PubMed
    25. Craven AM, Aiken GR, Ryan JN. Copper(II) binding by dissolved organic matter: importance of the copper-to-dissolved organic matter ratio and implications for the biotic ligand model. Environ Sci Technol. 2012 Sep 18; 46(18):9948-55. PMID: 22871072.
      View in: PubMed
    26. Writer JH, Ryan JN, Keefe SH, Barber LB. Fate of 4-nonylphenol and 17?-estradiol in the Redwood River of Minnesota. Environ Sci Technol. 2012 Jan 17; 46(2):860-8. PMID: 22208914.
      View in: PubMed
    27. Gerbig CA, Kim CS, Stegemeier JP, Ryan JN, Aiken GR. Formation of nanocolloidal metacinnabar in mercury-DOM-sulfide systems. Environ Sci Technol. 2011 Nov 01; 45(21):9180-7. PMID: 21877758.
      View in: PubMed
    28. Writer JH, Ryan JN, Barber LB. Role of biofilms in sorptive removal of steroidal hormones and 4-nonylphenol compounds from streams. Environ Sci Technol. 2011 Sep 01; 45(17):7275-83. PMID: 21846124.
      View in: PubMed
    29. Nagy KL, Manceau A, Gasper JD, Ryan JN, Aiken GR. Metallothionein-like multinuclear clusters of mercury(II) and sulfur in peat. Environ Sci Technol. 2011 Sep 01; 45(17):7298-306. PMID: 21809860.
      View in: PubMed
    30. Mohanram A, Ray C, Metge DW, Barber LB, Ryan JN, Harvey RW. Effect of dissolved organic carbon on the transport and attachment behaviors of Cryptosporidium parvum oocysts and carboxylate-modified microspheres advected through temperate humic and tropical volcanic agricultural soil. Environ Sci Technol. 2012 Feb 21; 46(4):2088-94. PMID: 21711011.
      View in: PubMed
    31. Writer JH, Barber LB, Ryan JN, Bradley PM. Biodegradation and attenuation of steroidal hormones and alkylphenols by stream biofilms and sediments. Environ Sci Technol. 2011 May 15; 45(10):4370-6. PMID: 21520955.
      View in: PubMed
    32. Aiken GR, Hsu-Kim H, Ryan JN. Influence of dissolved organic matter on the environmental fate of metals, nanoparticles, and colloids. Environ Sci Technol. 2011 Apr 15; 45(8):3196-201. PMID: 21405118.
      View in: PubMed
    33. Deonarine A, Lau BL, Aiken GR, Ryan JN, Hsu-Kim H. Effects of humic substances on precipitation and aggregation of zinc sulfide nanoparticles. Environ Sci Technol. 2011 Apr 15; 45(8):3217-23. PMID: 21291228.
      View in: PubMed
    34. Mohanram A, Ray C, Harvey RW, Metge DW, Ryan JN, Chorover J, Eberl DD. Comparison of transport and attachment behaviors of Cryptosporidium parvum oocysts and oocyst-sized microspheres being advected through three minerologically different granular porous media. Water Res. 2010 Oct; 44(18):5334-44. PMID: 20637489.
      View in: PubMed
    35. Tufenkji N, Miller GF, Ryan JN, Harvey RW, Elimelech M. Transport of Cryptosporidium oocysts in porous media: role of straining and physicochemical filtration. Environ Sci Technol. 2004 Nov 15; 38(22):5932-8. PMID: 15573591.
      View in: PubMed
    36. Harvey RW, Ryan JN. Use of PRD1 bacteriophage in groundwater viral transport, inactivation, and attachment studies. FEMS Microbiol Ecol. 2004 Jul 01; 49(1):3-16. PMID: 19712379.
      View in: PubMed
    37. Keefe SH, Barber LB, Runkel RL, Ryan JN. Fate of volatile organic compounds in constructed wastewater treatment wetlands. Environ Sci Technol. 2004 Apr 01; 38(7):2209-16. PMID: 15112826.
      View in: PubMed
    38. Loveland JP, Bhattacharjee S, Ryan JN, Elimelech M. Colloid transport in a geochemically heterogeneous porous medium: aquifer tank experiment and modeling. J Contam Hydrol. 2003 Sep; 65(3-4):161-82. PMID: 12935948.
      View in: PubMed
    39. Haitzer M, Aiken GR, Ryan JN. Binding of mercury(II) to aquatic humic substances: influence of pH and source of humic substances. Environ Sci Technol. 2003 Jun 01; 37(11):2436-41. PMID: 12831029.
      View in: PubMed
    40. Haitzer M, Aiken GR, Ryan JN. Binding of mercury(II) to dissolved organic matter: the role of the mercury-to-DOM concentration ratio. Environ Sci Technol. 2002 Aug 15; 36(16):3564-70. PMID: 12214650.
      View in: PubMed
    41. Ryan JN, Harvey RW, Metge D, Elimelech M, Navigato T, Pieper AP. Field and laboratory investigations of inactivation of viruses (PRD1 and MS2) attached to iron oxide-coated quartz sand. Environ Sci Technol. 2002 Jun 01; 36(11):2403-13. PMID: 12075796.
      View in: PubMed
    42. Bunn RA, Magelky RD, Ryan JN, Elimelech M. Mobilization of natural colloids from an iron oxide-coated sand aquifer: effect of pH and ionic strength. Environ Sci Technol. 2002 Feb 01; 36(3):314-22. PMID: 11871543.
      View in: PubMed
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