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Kathleen A. Schwehr, Ph.D. - Publications

Affiliations: 
2004 Texas A & M University, College Station, TX, United States 
Area:
Geochemistry, Hydrology, Environmental Sciences

48 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2019 Li D, Xu C, Yeager C, Lin P, Xing W, Schwehr KA, Chen N, Arthur Z, Kaplan DI, Santschi PH. Molecular Interaction of Aqueous Iodine Species with Humic Acid Studied by I and C K-edge X-ray Absorption Spectroscopy. Environmental Science & Technology. PMID 31553176 DOI: 10.1021/acs.est.9b03682  1
2019 Xu C, Lin P, Zhang S, Sun L, Xing W, Schwehr KA, Chin WC, Wade TL, Knap AH, Hatcher PG, Yard A, Jiang C, Quigg A, Santschi PH. The interplay of extracellular polymeric substances and oil/Corexit to affect the petroleum incorporation into sinking marine oil snow in four mesocosms. The Science of the Total Environment. 693: 133626. PMID 31377363 DOI: 10.1016/j.scitotenv.2019.133626  1
2019 Lin P, Xu C, Kaplan DI, Chen H, Yeager CM, Xing W, Sun L, Schwehr KA, Yamazaki H, Saito-Kokubu Y, Hatcher PG, Santschi PH. Nagasaki sediments reveal that long-term fate of plutonium is controlled by select organic matter moieties. The Science of the Total Environment. 678: 409-418. PMID 31077919 DOI: 10.1016/j.scitotenv.2019.04.375  1
2019 Wozniak AS, Prem PM, Obeid W, Waggoner DC, Quigg A, Xu C, Santschi PH, Schwehr KA, Hatcher PG. Rapid degradation of oil in mesocosm simulations of marine oil snow events. Environmental Science & Technology. PMID 30827089 DOI: 10.1021/acs.est.8b06532  1
2018 Bacosa HP, Kamalanathan M, Chiu MH, Tsai SM, Sun L, Labonté JM, Schwehr KA, Hala D, Santschi PH, Chin WC, Quigg A. Extracellular polymeric substances (EPS) producing and oil degrading bacteria isolated from the northern Gulf of Mexico. Plos One. 13: e0208406. PMID 30521589 DOI: 10.1371/journal.pone.0208406  1
2018 Sun L, Chin WC, Chiu MH, Xu C, Lin P, Schwehr KA, Quigg A, Santschi PH. Sunlight induced aggregation of dissolved organic matter: Role of proteins in linking organic carbon and nitrogen cycling in seawater. The Science of the Total Environment. 654: 872-877. PMID 30453257 DOI: 10.1016/j.scitotenv.2018.11.140  1
2018 Kamalanathan M, Schwehr KA, Bretherton L, Genzer J, Hillhouse J, Xu C, Williams A, Santschi P, Quigg A. Diagnostic tool to ascertain marine phytoplankton exposure to chemically enhanced water accommodated fraction of oil using Fourier Transform Infrared spectroscopy. Marine Pollution Bulletin. 130: 170-178. PMID 29866543 DOI: 10.1016/j.marpolbul.2018.03.027  1
2018 Lin P, Xu C, Xing W, Sun L, Kaplan DI, Fujitake N, Yeager CM, Schwehr KA, Santschi PH. Radionuclide uptake by colloidal and particulate humic acids obtained from 14 soils collected worldwide. Scientific Reports. 8: 4795. PMID 29556085 DOI: 10.1038/s41598-018-23270-0  1
2017 Lin P, Xu C, Zhang S, Fujitake N, Kaplan DI, Yeager C, Sugiyama Y, Schwehr KA, Santschi PH. Plutonium partitioning behavior to humic acids from widely varying soils is related to carboxyl-containing organic compounds. Environmental Science & Technology. PMID 28933160 DOI: 10.1021/acs.est.7b03409  1
2017 Sun L, Xu C, Zhang S, Lin P, Schwehr KA, Quigg A, Chiu MH, Chin WC, Santschi PH. Light-induced aggregation of microbial exopolymeric substances. Chemosphere. 181: 675-681. PMID 28476007 DOI: 10.1016/j.chemosphere.2017.04.099  1
2017 Santschi PH, Yeager KM, Schwehr KA, Schindler KJ. Estimates of recovery of the Penobscot River and estuarine system from mercury contamination in the 1960's. The Science of the Total Environment. 596: 351-359. PMID 28441575 DOI: 10.1016/j.scitotenv.2017.04.094  1
2015 Xu C, Zhang S, Kaplan DI, Ho YF, Schwehr KA, Roberts KA, Chen H, Didonato N, Athon M, Hatcher PG, Santschi PH. Evidence for hydroxamate siderophores and other N-containing organic compounds controlling (239,240)Pu immobilization and re-mobilization in a wetland sediment. Environmental Science & Technology. PMID 26313339 DOI: 10.1021/acs.est.5b02310  1
2015 Xu C, Kaplan DI, Zhang S, Athon M, Ho YF, Li HP, Yeager CM, Schwehr KA, Grandbois R, Wellman D, Santschi PH. Radioiodine sorption/desorption and speciation transformation by subsurface sediments from the Hanford Site. Journal of Environmental Radioactivity. 139: 43-55. PMID 25464040 DOI: 10.1016/j.jenvrad.2014.09.012  1
2015 Chuang CY, Santschi PH, Wen LS, Guo L, Xu C, Zhang S, Jiang Y, Ho YF, Schwehr KA, Quigg A, Hung CC, Ayranov M, Schumann D. Binding of Th, Pa, Pb, Po and Be radionuclides to marine colloidal macromolecular organic matter Marine Chemistry. 173: 320-329. DOI: 10.1016/j.marchem.2014.10.014  1
2014 Kaplan DI, Denham ME, Zhang S, Yeager C, Xu C, Schwehr KA, Li HP, Ho YF, Wellman D, Santschi PH. Radioiodine Biogeochemistry and Prevalence in Groundwater. Critical Reviews in Environmental Science and Technology. 44: 2287-2335. PMID 25264421 DOI: 10.1080/10643389.2013.828273  1
2014 Zhang S, Ho YF, Creeley D, Roberts KA, Xu C, Li HP, Schwehr KA, Kaplan DI, Yeager CM, Santschi PH. Temporal variation of iodine concentration and speciation (127I and 129I) in wetland groundwater from the Savannah River Site, USA. Environmental Science & Technology. 48: 11218-26. PMID 25219373 DOI: 10.1021/es502003q  1
2014 Schwehr KA, Otosaka S, Merchel S, Kaplan DI, Zhang S, Xu C, Li HP, Ho YF, Yeager CM, Santschi PH. Speciation of iodine isotopes inside and outside of a contaminant plume at the Savannah River Site. The Science of the Total Environment. 497: 671-8. PMID 25173764 DOI: 10.1016/j.scitotenv.2014.07.006  1
2014 Li HP, Daniel B, Creeley D, Grandbois R, Zhang S, Xu C, Ho YF, Schwehr KA, Kaplan DI, Santschi PH, Hansel CM, Yeager CM. Superoxide production by a manganese-oxidizing bacterium facilitates iodide oxidation. Applied and Environmental Microbiology. 80: 2693-9. PMID 24561582 DOI: 10.1128/AEM.00400-14  1
2014 Xu C, Athon M, Ho YF, Chang HS, Zhang S, Kaplan DI, Schwehr KA, DiDonato N, Hatcher PG, Santschi PH. Plutonium immobilization and remobilization by soil mineral and organic matter in the far-field of the Savannah River Site, U.S. Environmental Science & Technology. 48: 3186-95. PMID 24555528 DOI: 10.1021/es404951y  1
2014 Chang HS, Xu C, Schwehr KA, Zhang S, Kaplan DI, Seaman JC, Yeager C, Santschi PH. Model of radioiodine speciation and partitioning in organic-rich and organic-poor soils from the Savannah River Site Journal of Environmental Chemical Engineering. 2: 1321-1330. DOI: 10.1016/j.jece.2014.03.009  1
2014 Emerson HP, Xu C, Ho YF, Zhang S, Schwehr KA, Lilley M, Kaplan DI, Santschi PH, Powell BA. Geochemical controls of iodine uptake and transport in Savannah River Site subsurface sediments Applied Geochemistry. 45: 105-113. DOI: 10.1016/j.apgeochem.2014.03.002  1
2014 Xu C, Zhang S, Ho YF, Athon M, Johnston I, Schwehr KA, Kaplan DI, Didonato N, Hatcher PG, Santschi PH. Hydroxamate siderophores in soil mineral-organic matter matrix responsible for binding 239,240 Pu at the Savannah River Site, USA and Fukushima Prefecture, Japan Plutonium Futures: the Science 2014. 39.  1
2013 Zhang S, Xu C, Creeley D, Ho YF, Li HP, Grandbois R, Schwehr KA, Kaplan DI, Yeager CM, Wellman D, Santschi PH. Response to comment on "Iodine-129 and iodine-127 speciation in groundwater at Hanford Site, U.S.: iodate incorporation into calcite". Environmental Science & Technology. 47: 13205-6. PMID 24187920 DOI: 10.1021/es4046132  1
2013 Zhang S, Xu C, Creeley D, Ho YF, Li HP, Grandbois R, Schwehr KA, Kaplan DI, Yeager CM, Wellman D, Santschi PH. Iodine-129 and iodine-127 speciation in groundwater at the Hanford site, US: iodate incorporation into calcite. Environmental Science & Technology. 47: 9635-42. PMID 23885783 DOI: 10.1021/es401816e  1
2013 Xu C, Chen H, Sugiyama Y, Zhang S, Li HP, Ho YF, Chuang CY, Schwehr KA, Kaplan DI, Yeager C, Roberts KA, Hatcher PG, Santschi PH. Novel molecular-level evidence of iodine binding to natural organic matter from Fourier transform ion cyclotron resonance mass spectrometry. The Science of the Total Environment. 449: 244-52. PMID 23428755 DOI: 10.1016/j.scitotenv.2013.01.064  1
2013 Zhang S, Jiang Y, Chen CS, Creeley D, Schwehr KA, Quigg A, Chin WC, Santschi PH. Ameliorating effects of extracellular polymeric substances excreted by Thalassiosira pseudonana on algal toxicity of CdSe quantum dots Aquatic Toxicology. 126: 214-223. PMID 23246863 DOI: 10.1016/j.aquatox.2012.11.012  1
2013 Quigg A, Chin WC, Chen CS, Zhang S, Jiang Y, Miao AJ, Schwehr KA, Xu C, Santschi PH. Direct and indirect toxic effects of engineered nanoparticles on algae: Role of natural organic matter Acs Sustainable Chemistry and Engineering. 1: 686-702. DOI: 10.1021/sc400103x  1
2012 Zhang S, Jiang Y, Chen CS, Spurgin J, Schwehr KA, Quigg A, Chin WC, Santschi PH. Aggregation, dissolution, and stability of quantum dots in marine environments: importance of extracellular polymeric substances. Environmental Science & Technology. 46: 8764-72. PMID 22834414 DOI: 10.1021/es301000m  1
2012 Li HP, Yeager CM, Brinkmeyer R, Zhang S, Ho YF, Xu C, Jones WL, Schwehr KA, Otosaka S, Roberts KA, Kaplan DI, Santschi PH. Bacterial production of organic acids enhances H2O2-dependent iodide oxidation. Environmental Science & Technology. 46: 4837-44. PMID 22455542 DOI: 10.1021/es203683v  1
2012 Xu C, Zhong J, Hatcher PG, Zhang S, Li HP, Ho YF, Schwehr KA, Kaplan DI, Roberts KA, Brinkmeyer R, Yeager CM, Santschi PH. Molecular environment of stable iodine and radioiodine ( 129I) in natural organic matter: Evidence inferred from NMR and binding experiments at environmentally relevant concentrations Geochimica Et Cosmochimica Acta. 97: 166-182. DOI: 10.1016/j.gca.2012.08.030  1
2011 Xu C, Miller EJ, Zhang S, Li HP, Ho YF, Schwehr KA, Kaplan DI, Otosaka S, Roberts KA, Brinkmeyer R, Yeager CM, Santschi PH. Sequestration and remobilization of radioiodine (129I) by soil organic matter and possible consequences of the remedial action at Savannah River Site. Environmental Science & Technology. 45: 9975-83. PMID 22035296 DOI: 10.1021/es201343d  1
2011 Chen CS, Anaya JM, Zhang S, Spurgin J, Chuang CY, Xu C, Miao AJ, Chen EYT, Schwehr KA, Jiang Y, Quigg A, Santschi PH, Chin WC. Effects of engineered nanoparticles on the assembly of exopolymeric substances from phytoplankton Plos One. 6. PMID 21811550 DOI: 10.1371/journal.pone.0021865  1
2011 Zhang S, Du J, Xu C, Schwehr KA, Ho YF, Li HP, Roberts KA, Kaplan DI, Brinkmeyer R, Yeager CM, Chang HS, Santschi PH. Concentration-dependent mobility, retardation, and speciation of iodine in surface sediment from the Savannah River Site. Environmental Science & Technology. 45: 5543-9. PMID 21663237 DOI: 10.1021/es1040442  1
2011 Otosaka S, Schwehr KA, Kaplan DI, Roberts KA, Zhang S, Xu C, Li HP, Ho YF, Brinkmeyer R, Yeager CM, Santschi PH. Factors controlling mobility of 127I and 129I species in an acidic groundwater plume at the Savannah River Site. The Science of the Total Environment. 409: 3857-65. PMID 21641630 DOI: 10.1016/j.scitotenv.2011.05.018  1
2011 Li HP, Brinkmeyer R, Jones WL, Zhang S, Xu C, Schwehr KA, Santschi PH, Kaplan DI, Yeager CM. Iodide accumulation by aerobic bacteria isolated from subsurface sediments of a 129I-contaminated aquifer at the Savannah River site, South Carolina. Applied and Environmental Microbiology. 77: 2153-60. PMID 21278282 DOI: 10.1128/AEM.02164-10  1
2011 Kaplan DI, Roberts KA, Schwehr KA, Lilley MS, Brinkmeyer R, Denham ME, Diprete D, Li HP, Powell BA, Xu C, Yeager CM, Zhang S, Santschi PH. Evaluation of a radioiodine plume increasing in concentration at the Savannah River Site. Environmental Science & Technology. 45: 489-95. PMID 21138294 DOI: 10.1021/es103314n  1
2011 Xu C, Zhang S, Chuang Cy, Miller EJ, Schwehr KA, Santschi PH. Chemical composition and relative hydrophobicity of microbial exopolymeric substances (EPS) isolated by anion exchange chromatography and their actinide-binding affinities Marine Chemistry. 126: 27-36. DOI: 10.1016/j.marchem.2011.03.004  1
2011 Xu C, Santschi PH, Hung CC, Zhang S, Schwehr KA, Roberts KA, Guo L, Gong GC, Quigg A, Long RA, Pinckney JL, Duan S, Amon R, Wei CL. Controls of 234Th removal from the oligotrophic ocean by polyuronic acids and modification by microbial activity Marine Chemistry. 123: 111-126. DOI: 10.1016/j.marchem.2010.10.005  1
2011 Xu C, Zhang S, Ho YF, Miller EJ, Roberts KA, Li HP, Schwehr KA, Otosaka S, Kaplan DI, Brinkmeyer R, Yeager CM, Santschi PH. Is soil natural organic matter a sink or source for mobile radioiodine (129I) at the Savannah River Site? Geochimica Et Cosmochimica Acta. 75: 5716-5735. DOI: 10.1016/j.gca.2011.07.011  1
2010 Zhang S, Schwehr KA, Ho YF, Xu C, Roberts KA, Kaplan DI, Brinkmeyer R, Yeager CM, Santschi PH. A novel approach for the simultaneous determination of iodide, iodate and organo-iodide for 127I and 129I in environmental samples using gas chromatography-mass spectrometry. Environmental Science & Technology. 44: 9042-8. PMID 21069952 DOI: 10.1021/es102047y  1
2010 Hung CC, Xu C, Santschi PH, Zhang SJ, Schwehr KA, Quigg A, Guo L, Gong GC, Pinckney JL, Long RA, Wei CL. Comparative evaluation of sediment trap and 234Th-derived POC fluxes from the upper oligotrophic waters of the Gulf of Mexico and the subtropical northwestern Pacific Ocean Marine Chemistry. 121: 132-144. DOI: 10.1016/j.marchem.2010.03.011  1
2009 Schwehr KA, Santschi PH, Kaplan DJ, Yeager CM, Brinkmeyer R. Organo-iodine formation in soils and aquifer sediments at ambient concentrations. Environmental Science & Technology. 43: 7258-64. PMID 19848131 DOI: 10.1021/es900795k  1
2009 Xu C, Santschi PH, Schwehr KA, Hung CC. Optimized isolation procedure for obtaining strongly actinide binding exopolymeric substances (EPS) from two bacteria (Sagittula stellata and Pseudomonas fluorescens Biovar II). Bioresource Technology. 100: 6010-21. PMID 19574036 DOI: 10.1016/j.biortech.2009.06.008  1
2009 Miao AJ, Schwehr KA, Xu C, Zhang SJ, Luo Z, Quigg A, Santschi PH. The algal toxicity of silver engineered nanoparticles and detoxification by exopolymeric substances Environmental Pollution. 157: 3034-3041. PMID 19560243 DOI: 10.1016/j.envpol.2009.05.047  1
2005 Schwehr KA, Santschi PH, Moran JE, Elmore D. Near-conservative behavior of 129I in the orange county aquifer system, California Applied Geochemistry. 20: 1461-1472. DOI: 10.1016/j.apgeochem.2005.02.003  1
2005 Schwehr KA, Santschi PH, Elmore D. The dissolved organic iodine species of the isotopic ratio of 129I/127I. A novel tool for tracing terrestrial organic carbon in the estuarine surface waters of Galveston Bay, Texas Limnology and Oceanography: Methods. 3: 326-337.  1
2004 Santschi PH, Schwehr KA. 129I/(127)I as a new environmental tracer or geochronometer for biogeochemical or hydrodynamic processes in the hydrosphere and geosphere: the central role of organo-iodine. The Science of the Total Environment. 321: 257-71. PMID 15050400 DOI: 10.1016/j.scitotenv.2003.09.003  1
2003 Schwehr KA, Santschi PH. Sensitive determination of iodine species, including organo-iodine, for freshwater and seawater samples using high performance liquid chromatography and spectrophotometric detection Analytica Chimica Acta. 482: 59-71. DOI: 10.1016/S0003-2670(03)00197-1  1
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