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Jon Chorover is Professor and Head, Department of Soil, Water and Environmental Science at the University of Arizona (UA). He received his B.S. (Environmental Science) from University of Michigan, and M.S. (Forest Science) and Ph.D. (Soil and Water Chemistry) from UC Berkeley, worked as an NSF postdoctoral fellow in Analytical Chemistry at University of Geneva, and was on the faculty of Penn State University before joining the faculty of University of Arizona. His research group explores the biogeochemistry of soil, sediment and water through laboratory and field-based experiments probed with advanced analytical chemistry techniques. Of particular interest is resolving how mineral-organic interactions influence the weathering of soils, the stabilization of organic carbon, and the speciation, mobility and bioaccessibility of pollutants. He directs a core analytical chemistry facility, the Arizona Laboratory for Emerging Contaminants (www.alec.arizona.edu) and serves as PI of the UA-led, NSF-funded Santa Catalina Mountains – Jemez River Basin Critical Zone Observatory (http://criticalzone.org/catalina-jemez/).

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Courses
  • ASWC
    Advanced Soil and Water Chemistry

  • MB
    Molecular Biogeochemistry

  • ESWC
    Environmental Soil and Water Chemistry

Grants
  • Funding agency logo
    Collaborative Research: Concentration - Ratio - Discharge (C-R-Q) Relationships of Transient Water-Age Distributions

    Principal Investigator (PI)

    2022

    $466.5K
    Active
  • Funding agency logo
    Collaborative Research: GCR: Growing a New Science of Landscape Terraformation: The Convergence of Rock, Fluids, and Life to form Complex Ecosystems Across Scales

    Co-Investigator (COI)

    2021

    $1.2M
    Active
  • Funding agency logo
    In-Situ Sequestration of PFAS from Contaminated Groundwater using Injectable High Affinity Cationic Hydrophobic

    Principal Investigator (PI)

    2021

    $250.0K
    Active
  • Funding agency logo
    Exposures, Health Impacts, and Risk for Mine Waste Contamination

    Multiple Principal Investigator (MPI)

    2020

    $8.9M
    Active
  • Funding agency logo
    Collaborative Research: Network Cluster: Geomicrobiology and Biogeochemistry in the Critical Zone

    Co-Investigator (COI)

    2020

    $407.3K
    Active
  • Funding agency logo
    Collaborative Research: Network Cluster: Using Big Data Approaches to Assess Ecohydrological Resilience Across Scales

    Principal Investigator (PI)

    2020

    $216.3K
    Active
  • Funding agency logo
    Analysis of Groundwater Flow and Uranium Sorption Properties of Tnbs1/Tnbs0 Bedrock Core From The Lawrence Livermore National Laboratory Site 300 Building 812 Area

    Co-Investigator (COI)

    2020

    $70.0K
    Active
  • Funding agency logo
    High Rate Degradation of 3-Nitro-1,2,4-triazol-5-one (NTO) to Environmentally Benign End Products in Sequential Reducing-Oxidizing Reactive Mineral Packed Bed Reactors

    Co-Investigator (COI)

    2019

    $678.6K
    Active
  • Funding agency logo
    Southwest Environmental Health Sciences Center

    Co-Investigator (COI)

    2018

    $7.3M
    Active
  • Funding agency logo
    Central Date Palm Laboratory Project

    Principal Investigator (PI)

    2018

    $3.9M
    Active
Technologies / Patents
      News
      • Microbes are 'active engineers' in Earth's rock-to-life cycle

        2023

      • Valley Fever Collaborative awarded $3.1M in research funds

        2022

      • Life on LEO: Plants to be Added to the Landscape Evolution Observatory at Biosphere 2

        2021

      • UA Engineers Use $1.2M Grant to Make Drinking Water Safer

        2019

      • Environmental Impact: Rendering Toxic Explosives Harmless

        2019

      • Tech On Tap: UA Inventors Address World Water Woes

        2019

      • UA-Led $3.9M Project to Focus on Date Palm Production in Oman

        2018

      • EarthWeek 2016 to Feature Student Research

        2016

      • UA Researchers Hunt Bomb-Eating Bugs

        2012

      • UA Tests Consumer Water Filters for Contaminant Removal

        2012

      • Water Contaminant Expert Joins UA Engineering Research Team

        2010

      • How Microbes Eat Rocks

        2010

      • New Emerging Contaminants Lab Holds Open House Jan. 21

        2009

      • Shelton Joins House Speaker, Scientists to Launch 'ScienceWorksForUS'

        2009

      • UA Awarded $4.35M to Study Earth's Critical Zone

        2009

      • More Than $81M in Stimulus Funding Awarded to UA for 122 Research Projects, Creating or Preserving the Equivalent of 157 Jobs

        2009

      • President Shelton's State of the University Address

        2009

      • Former Biospherian to Speak at Biosphere 2 March 8

        2008

      • Biosphere 2 Offers Special Events for Saturday Visitors

        2008

      • The University of Arizona Launches Major Scientific Research Initiative at Biosphere 2

        2007

      • Grant to UA Makes Kartchner Caverns a Microbial Observatory

        2006

      • Caustic Soils at Hanford May Lock Up Contaminants Fast

        2004

      Publications (207)
      Recent
      • Experimental weathering of a volcaniclastic critical zone profile: Key role of colloidal constituents in aqueous geochemical response

        2021

      • Bioconcentration potential and microbial toxicity of onium cations in photoacid generators

        2021

      • Resolving deep critical zone architecture in complex volcanic terrain

        2020

      • Life teems below the surface

        2020

      • Dissolved Carbonate and pH Control the Dissolution of Uranyl Phosphate Minerals in Flow-Through Porous Media

        2020

      • Vegetation source water identification using isotopic and hydrometric observations from a subhumid mountain catchment

        2020

      • Arsenic and iron speciation and mobilization during phytostabilization of pyritic mine tailings

        2020

      • Reactive transport modeling of basalt weathering and early soil formation within a highly-controlled, sloping lysimeter

        2020

      • Strong slope-aspect control of regolith thickness by bedrock foliation

        2020

      • Depth and topographic controls on microbial activity in a recently burned sub-alpine catchment

        2020

      • Ubiquitous fractal scaling and filtering behavior of hydrologic fluxes and storages from a mountain headwater catchment

        2020

      • Soil organic carbon stability in forests: Distinct effects of tree species identity and traits

        2019

      • Surficial weathering of kaolin regolith in a subtropical climate: Implications for supergene pedogenesis and bedrock argillization

        2019

      • Assessing Microbial Community Patterns During Incipient Soil Formation From Basalt

        2019

      • Rare earth elements (REY) sorption on soils of contrasting mineralogy and texture

        2019

      • Effect of re-acidification on Buffalo Grass rhizosphere and bulk microbial communities during phytostabilization of metalliferous mine tailings

        2019

      • From rock to life. A mass balance analysis of oxidative biological weathering and biosignature formation

        2019

      • Soil microbiome dynamics during pyritic mine tailing phytostabilization: Understanding microbial bioindicators of soil acidification

        2019

      • Microtopography-mediated hydrologic environment controls elemental migration and mineral weathering in subalpine surface soils of subtropical monsoonal China

        2019

      • Adsorption and oxidation of 3-nitro-1,2,4-triazole-5-one (NTO) and its transformation product (3-amino-1,2,4-triazole-5-one, ATO) at ferrihydrite and birnessite surfaces

        2018

      • Abiotic reducton of insensitive munition compounds by sulfate green rust

        2018

      • Mechanisms of arsenic sequestration by Prosopis juliflora during the phytostabilization of metalliferous mine tailings

        2018

      • Uranium speciation in acid waste-weathered sediments: The role of aging and phosphate amendments

        2018

      • Trace element mobilization during incipient bioweathering of four rock types

        2018

      • Oxidation of reduced daughter products from 2,4-dinitroanisole (DNAN) by Mn(IV) and Fe(III) oxides

        2018

      • Ecotoxicity of the insensitive munitions compound 3-nitro-1,2,4-triazol-5-one (NTO) and its reduced metabolite 3-amino-1,2,4-triazol-5-one (ATO)

        2018

      • Subsurface pore water contributions to stream concentration-discharge relations across a snowmelt hydrograph

        2018

      • Trapping of lead (Pb) by corn and pea root border cells

        2018

      • Understanding critical zone evolution through predicting the three-dimensional soil chemical properties of a small forested catchment.

        2018

      • Treatment impacts on temporal microbial community dynamics during phytostabilization of acid-generating mine tailings in semiarid regions

        2018

      • Wet-dry cycles impact DOM retention in subsurface soils

        2018

      • A considerable fraction of soil-respired Co2 is not emitted directly to the atmosphere

        2018

      • Bacterial rhizoplane colonization patterns of Buchloe dactyloides growing in metalliferous mine tailings reflect plant status and biogeochemical conditions

        2017

      • Biogeochemical control points in a water‐limited critical zone

        2017

      • Environmental fate of C-14 radiolabeled 2,4-dinitroanisole in soil microcosms.

        2017

      • Sequential anaerobic-aerobic biodegradation of emerging insensitive munitions compound 3-nitro-1,2,4-triazol-5-one (NTO).

        2017

      • Concentration-discharge relations in the critical zone: Implications for resolving critical zone structure, function and evolution.

        2017

      • Geochemical evolution of the critical zone across variable time scales informs concentration-discharge relationships: Jemez River Basin Critical Zone Observatory

        2017

      • Hydrologic functioning of the deep Critical Zone and contributions to streamflow in a high elevation catchment: testing of multiple conceptual models

        2017

      • Changing Water, Carbon and Energy Fluxes Alters Deep CZ Structure and Solute Exports to Streams

        2017

      • Hydrologic and environmental controls on uranium‐series and strontium isotope ratios in a natural weathering environment

        2017

      • Evolution of concentration‐discharge relations revealed by high frequency diurnal sampling of stream water during spring snowmelt

        2017

      • Uranium release from acidic weathered sediments: Single-pass flow-through and column experiments

        2017

      • Ecosystem composition controls the fate of rare earth elements during incipient soil genesis

        2017

      • Hydrologic and Environmental Controls on Uranium-Series Isotopes in a Natural Volcanic Weathering Environment

        2017

      • Designing a network of critical zone observatories to explore the living skin of the terrestrial Earth

        2017

      • Impact of Wildfire on Solute Release in Forested Catchments, Jemez River, New Mexico, USA

        2017

      • Rates and mechanisms of uranyl oxyhydroxide mineral dissolution

        2017

      • Broadening ecosystem services through inclusion of a geoscience perspective

        2016

      • Microbial toxicity and characterization of DNAN (bio)transformation product mixtures

        2016

      • Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations

        2016

      • Understanding ecosystem services from a geosciences perspective

        2016

      • Sequential anaerobic-aerobic biodegradatin of emerging insenstive munitions compound 3-nitro-1,2,4-triazol-5-one (NTO)

        2016

      • Phytostabillization of mine tailings using compost-assisted direct planting: Translating greenhouse results ot the field

        2016

      • Internal domains of natural porous media revealed: Critical locations for transport, storage and chemical reaction

        2016

      • U-series osotopic signatures of soils and headwater streams in a semi-arid complex volcanic terrain

        2016

      • Pore water chemistry reveals gradients in mineral transformation across a model basaltic hillslope

        2016

      • CO2 diffusion into pore spaces limits weathering rate of an experimental basalt landscape

        2016

      • Between Control and Complexity: Opportunities and Challenges for Marine Mesocosms

        2016

      • Arsenic remediation by formation of arsenic sulfide minerals in a continous anaerobic bioreactor

        2016

      • (Bio)transformation of 2,4-dinitroanisole (DNAN) in soils

        2016

      • Colloids and organic matter complexation control trace metal concentration-dsicharge relationships in Marshall Gulch stream waters

        2016

      • Mass balance of trace elements in weathering rocks

        2016

      • Resolving colocalization of bacteria and metal(loids) on plant root surfaces by combining fluorescence in situ hybridization (FISH) with multiple-energy micro-focused X-ray fluorescence

        2016

      • Zebrafish embryo toxicity of anaerobic biotransformation products from the insensitive munitions compout 2,4-dintroanisole

        2016

      • Light, earthworms, and soil resources as predictors of diversity of 10 soil invertebrate groups across monocultures of 14 tree species

        2016

      • Solid-phase redistribution of rare earth elements in hillslope pedons subjected to different hydrologic fluxes

        2016

      • Adsoprtion of novel insensitive minutions compounds at clay mineral and metal oxide surfaces

        2015

      • Rare earth elements as reactive tracers of biogeochemical weathering in forested rhyolitic terrain

        2015

      • Biotransformation and degradation of the insensitive munitions compound, 3-nitro-1,2,4-triazol-5-one, by soil bacterial communities.

        2015

      • Mineral nutrient mobilization by plants from rock: Influence of rock type and arbuscular mycorrhiza

        2015

      • Climatic, landscape, and edaphic controls on soil carbon efflux in seasonally snow covered forest ecosystems

        2015

      • Abundance and activity of 16S rRNA, AmoA and NifH bacterial genes during assisted phytostabilization of mine tailings

        2015

      • Climatic and landscape influences on soil moisture are primary determinants of soil carbon fluxes in seasonally snow-covered forest ecosystems.

        2015

      • Effects of litter traits, soil biota, and soil chemistry, and stand characteristics on soild C stocks at a common garden with 14 tree species

        2015

      • Quantifying particulate and colloidal relsease of radionuclides in waste-weathered Hanford sediments

        2015

      • Hydrological partitioning in the critical zone: Recent advances and opportunities for developing ransferable understanding of water cycle dynamics.

        2015

      • Toxic metal(loid) speciation during weatherin gof iron sulfide mine tailings under semi-arid climate

        2015

      • Rapid soil CO2 drawdown during incipient weathering of a granular basaltic landscape.

        2015

      • The Landscape Evolution Observatory: A large-scale controllable infrastructure to study coupled Earth-surface processes

        2015

      • Critical zone services: Expanding context, constraints, and curency beyond ecosystem services.

        2015

      • Forward to the Research Front on Mineral-Organic Interactions in Aqueous Systems

        2015

      • Climatic and landscape controls on water transit times and silicate mineral weathering in the Critical Zone

        2015

      • Quantifying topographic and vegetation effects on the trnasfer of energy and mass to a critical zone

        2015

      • Understanding of ecosystem services from a geosciences perspective

        2015

      • Surficial weathering of iron sulfide mine tailings under semi-arid climate

        2014

      • Stream water carbon controls in seasonally snow-covered mountain catchments: impact of inter-annual variability of water fluxes, catchment aspect and seasonal processes

        2014

      • Influence of Phosphate and Silica on U(VI) Precipitation from Acidic and Neutralized Wastewaters

        2014

      • Environmental factors influencing the structural dynamics of soil microbial communities during assisted phytostabilization of acid-generating mine tailings: A mesocosm experiment.

        2014

      • Experimental assessment of passive capillary wick sampler suitability for inorganic soil solution constituents

        2014

      • Fractionation of Dissolved Organic Matter by (Oxy)Hydroxide-Coated Sands: Competitive Sorbate Displacement during Reactive Transport

        2014

      • Critical Zone Services: Expanding Context, Constraints, and Currency beyond Ecosystem Services

        2014

      • Incipient subsurface heterogeneity and its effect on overland flow generation – insight from a modeling study of the first experiment at the Biosphere 2 Landscape Evolution Observatory

        2014

      • Bioaccessibility, release kinetics, and moelcular speciation of arsenic and lead in geo-dusts from the Iron King Mine Federal Superfund site in Humboldt, Arizona

        2014

      • Synthesis of 13C and 15N labeled 2,4-dinitroanisole

        2014

      • Hillslope-scale experiment demonstrates the role of convergence during two-step saturation

        2014

      • Impact of organic carbon on weathering and chemical denudation of granular basalt

        2014

      • Biomineralization of arsenate to arsenic sulfides is greatly enhanced at mildly acidic conditions

        2014

      • Mineral transformation controls speciation and pore-fluid transmission of contaminants in waste-weathered Hanfod sediments

        2014

      • Microscale speciation of arsenic and iron in ferric-based sorbents subjected to simulated landfill conditions

        2013

      • Complexation of trace organic contaminants with fractionated dissolved organic matter: Implications for mass spectrometric quantification

        2013

      • A new standard-based polynomial interpolation (SBPln) method to address gel-to-gel variability for the comparison of multiple denaturing gradient gel electrophoresis profile matrices

        2013

      • Effect of silicic acid on arsenate and arsenite retention mechanisms on 6-L ferrihydrite: A spectroscopic and batch adsorption approach

        2013

      • The influence of goethite and gibbsite on soluble nutrient dynamics and microbial community composition

        2013

      • Sorptive fractionation of organic matter and formation of organo-hydroxy-aluminum complexes during litter biodegradation in the presence of gibbsite

        2013

      • Fractionation of yttrium and holmium during basaltic soil weathering

        2013

      • ATR-FTIR Spectroscopy Study of the Influence of pH and Contact Time on the Adhesion of Shewanella putrefaciens Bacterial Cells to the Surface of Hematite

        2012

      • Adsorption of perfluorooctanoic acid and perfluorooctanesulfonic acid to iron oxide surfaces as studied by flow-through ATR-FTIR spectroscopy

        2012

      • Response of key soil parameters during phytostabilization in extremely acidic tailings: effect of plant species

        2012

      • Impacts of sampling dissolved organic matter with passive capillary wicks versus aqueous soil extraction

        2012

      • Long-term carbon storage through retention of dissolved aromatic acids by reactive particles in soil

        2012

      • Quantifying PPCP interaction with dissolved organic matter in aqueous solution: Combined use of fluorescence quenching and tandem mass spectrometry

        2012

      • Tree species effects on coupled cycles of carbon, nitrogen, and acidity in mineral soils at a common garden experiment

        2012

      • Natural dissolved organic matter affects electrospray ionization during analysis of emerging contaminants by mass spectrometry

        2012

      • Strontium and cesium release mechanisms during unsaturated flow through waste-weathered Hanford sediments

        2011

      • How water, carbon, and energy drive landscape evolution and surface water dynamics: The Jemez River Basin

        2011

      • Calibration and testing of upland hillslope evolution models in a dated landscape: Banco Bonito, New Mexico

        2011

      • A mass-balance model to separate and quantify colloidal and solute redistributions in soil

        2011

      • Changes in zinc speciation with mine tailings acidification in an arid weathering environment

        2011

      • Interactions of carbamazepine in soil: Effects of dissolved organic matter

        2011

      • Iron solid-phase differentiation along a redox gradient in basaltic soils

        2011

      • Changes in water extractable organic matter during incubation of forest floor material in the presence of quartz, goethite and gibbsite surfaces

        2011

      • Stabilization of extracellular polymeric substances by adsorption versus co-precipitation with hydroxyl-aluminum species

        2011

      • Cesium and strontium incorporation into zeolite-type phases during homogeneous nucleation from caustic solutions

        2011

      • Effect of arbuscular mycorrhizal fungi on plant biomass and the rhizosphere microbial community structure of mesquite grown in acidic lead/zinc mine tailings

        2011

      • Stabilization of extracellular polymeric substances (Bacillus subtilis) by adsorption to and coprecipitation with Al forms

        2011

      • Amphiphile disruption of pathogen attachment at the hematite (α-Fe sub 2 /sub O sub 3 /sub )-Water Interface

        2011

      • How water, carbon, and energy drive critical zone evolution: the Jemez-Santa Catalina Critical Zone Observatory

        2011

      • Differential effects of dissolved organic carbon upon re-entrainment and surface properties of groundwater bacteria and bacteria-sized microspheres during transport through a contaminated, sandy aquifer

        2011

      • Trace contaminant concentration affects mineral transformation and pollutant fate in hydroxide-weathered Hanford sediments

        2011

      • Rare earth element release from phosphate minerals in the presence of organic acids

        2010

      • Comparison of transport and attachment behaviors of Cryptosporidium parvum oocysts and oocyst-sized microspheres being advected through three minerologically different granular porous media

        2010

      • Adsorption of sodium dodecyl sulfate (SDS) at ZnSe and α-Fe sub 2 /sub O sub 3 /sub surfaces: Combining infrared spectroscopy and batch uptake studies

        2010

      • Erratum: Contaminant Desorption during Long-Term Leaching of Hydroxide-Weathered Sediments(Environmental Science and Technology (2010) 44 (4384))

        2010

      • ATR-FTIR studies of phospholipid vesicle interactions with α-FeOOH and α-Fe sub 2 /sub O sub 3 /sub surfaces

        2010

      • Recalcitrance-dead and buried?

        2010

      • Mineralogical impact on organic nitrogen across a long-term soil chronosequence (0.3-4100 kyr)

        2010

      • Contaminant desorption during long-term leaching of hydroxide-weathered hanford sediments

        2010

      • Surface complexation of carboxylate adheres Cryptosporidium parvum oocysts to the hematite-water interface

        2009

      • A scanner-based approach to soil profile-wall mapping of root distribution

        2009

      • Biogeochemistry of mineral-organic associations across a long-term mineralogical soil gradient (0.3-4100 kyr), Hawaiian Islands

        2009

      • In-situ monitoring of Cryptosporidium parvum oocyst surface adhesion using ATR-FTIR spectroscopy

        2009

      • Solid phase evolution in the Biosphere 2 hillslope experiment as predicted by modeling of hydrologic and geochemical fluxes

        2009

      • Iron interference in the quantification of nitrate in soil extracts and its effect on hypothesized abiotic immobilization of nitrate

        2008

      • Silicon control of strontium and cesium partitioning in hydroxide-weathered sediments

        2008

      • ATR-FTIR study of lipopolysaccharides at mineral surfaces

        2008

      • Discussion papers

        2008

      • Physical chemistry of soils and aquifers: A special issue in honor of Garrison Sposito

        2007

      • Tree species effects on soil organic matter dynamics: The role of soil cation composition

        2007

      • Controls over leaf and litter calcium concentrations among temperate trees

        2007

      • Rayleigh fractionation of iron isotopes during pedogenesis along a climate sequence of Hawaiian basalt

        2007

      • Molecular weight and humification index as predictors of adsorption for plant- and manure-derived dissolved organic matter to goethite

        2007

      • Soil biogeochemicial processes within the critical zone

        2007

      • Infrared spectroscopy studies of cation effects on lipopolysaccharides in aqueous solution

        2007

      • Adsorption to goethite of extracellular polymeric substances from Bacillus subtilis

        2006

      • Colloid mobilization during soil iron redox oscillations

        2006

      • Leachate migration from spent mushroom substrate through intact and repacked subsurface soil columns

        2006

      • Effects of organic acids and dissolved oxygen on apatite and chalcopyrite dissolution: Implications for using elements as organomarkers and oxymarkers

        2006

      • Iron-oxide crystallinity increases during soil redox oscillations

        2006

      • ATR-FTIR spectroscopy reveals bond formation during bacterial adhesion to iron oxide

        2006

      • Wastewater dissolved organic matter: Characteristics and sorptive capabilities

        2006

      • Effects of organic ligands on granite dissolution in batch experiments at pH 6

        2006

      • Solid-state NMR identification and quantification of newly formed aluminosilicate phases in weathered kaolinite systems

        2006

      • Implications of the evolution of organic acid moieties for basalt weathering over geological time

        2005

      • FTIR spectroscopic study of biogenic Mn-oxide formation by Pseudomonas putida GB-1

        2005

      • Linking litter calcium, earthworms and soil properties: A common garden test with 14 tree species

        2005

      • Sorption of the antibiotic ofloxacin to mesoporous and nonporous alumina and silica

        2005

      • Element mobility patterns record organic ligands in soils on early Earth

        2005

      • Clay mineral weathering and contaminant dynamics in a caustic aqueous system I. Wet chemistry and aging effects

        2005

      • Surface charge evolution of mineral-organic complexes during pedogenesis in Hawaiian basalt

        2004

      • Influence of mesoporosity on the sorption of 2,4-dichlorophenoxyacetic acid onto alumina and silica

        2004

      • Adhesion of bacterial exopolymers to α-FeOOH: Inner-sphere complexation of phosphodiester groups

        2004

      • Interaction of phenanthrene and its primary metabolite (1-hydroxy-2- naphthoic acid) with estuarine sediments and humic fractions

        2004

      • Spectroscopic study of extracellular polymeric substances from Bacillus subtilis: Aqueous chemistry and adsorption effects

        2004

      • Protection of mesopore-adsorbed organic matter from enzymatic degradation

        2004

      • Solute release from weathering of spent mushroom substrate under controlled conditions

        2004

      • Mineral mesopore effects on nitrogenous organic matter adsorption

        2004

      • Proposed initiative would study earth's weathering engine

        2004

      • Transport and fractionation of dissolved organic matter in soil columns

        2003

      • A mechanism of abiotic immobilization of nitrate in forest ecosystems: The ferrous wheel hypothesis

        2003

      • Linking cesium and strontium uptake to kaolinite weathering in simulated tank waste leachate

        2003

      • Humic acid complexation of basic and neutral polycyclic aromatic compounds

        2002

      • Surface charge of variable porosity Al sub 2 /sub O sub 3 /sub (s) and SiO sub 2 /sub (s) adsorbents

        2002

      • Adsorption of quinoline to kaolinite and montmorillonite

        2002

      • Cesium adsorption on clay minerals: An EXAFS spectroscopic investigation

        2002

      • Leachate chemistry of field-weathered spent mushroom substrate

        2001

      • Reaction of forest floor organic matter at goethite, birnessite and smectite surfaces

        2001

      • The chemistry of pedogenic thresholds

        2001

      • Rapid abiotic transformation of nitrate in an acid forest soil

        2001

      • Effects of spent mushroom substrate weathering on the chemistry of underlying soils

        2001

      • Short communication: Biodegradation of 1-naphthol in the presence of humic acid

        2000

      • Evolution of CO sub 2 /sub during birnessite-induced oxidation of sup 14 /sup C-labeled catechol

        2000

      • Effects of solution chemistry on the oxidative transformation of 1-naphthol and its complexation with humic acid

        2000

      • Artifacts caused by collection of soil solution with passive capillary samplers

        2000

      • Organic matter transformations during the weathering process of spent mushroom substrate

        2000

      • Interaction of 1-naphthol and its oxidation products with aluminum hydroxide

        1999

      • Structural charge and cesium retention in a chronosequence of tephritic soils

        1999

      • Quinoline sorption on kaolinite-humic acid complexes

        1999

      • Role of surface precipitation in copper sorption by the hydrous oxides of iron and aluminum

        1999

      • Comparison of hematite coagulation by charge screening and phosphate adsorption: Differences in aggregate structure

        1997

      • Colloid chemistry of kaolinitic tropical soils

        1995

      • Dissolution behavior of kaolinitic tropical soils

        1995

      • Surface charge characteristics of Podzolized soil

        1995

      • Surface charge characteristics of kaolinitic tropical soils

        1995

      • Solution chemistry profiles of mixed-conifer forests before and after fire

        1994

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