All Stories

  1. Halogenated Organic Compounds: A Massive Halogen Reservoir and an Intriguing Component of the Marine Dissolved Organic Matter Pool

    Article • Geophysical Research Letters, December 2025, American Geophysical Union (AGU)

    Dr Leanne C Powers

  2. Sailing together: A review of the pelagic Sargassum microbiome

    Article • Harmful Algae, September 2025, Elsevier

    Vincent HERVE, Dr Leanne C Powers

  3. A pilot study suggests the correspondence between SAR202 bacteria and dissolved organic matter in the late stage of a year-long microcosm incubation

    Article • Frontiers in Microbiology, April 2024, Frontiers

    Dr Leanne C Powers

  4. Evaluating the photochemical reactivity of disinfection byproducts formed during seawater desalination processes

    Article • The Science of The Total Environment, February 2024, Elsevier

    Dr Leanne C Powers

  5. Marine photochemistry of organic matter: Processes and impacts

    Article • January 2024, Elsevier

    Dr Leanne C Powers

  6. Molecular level seasonality of dissolved organic matter in freshwater and its impact on drinking water treatment

    Article • Environmental Science Water Research & Technology, January 2024, Royal Society of Chemistry

    Dr Leanne C Powers

  7. Optical properties and molecular differences in dissolved organic matter at the Bermuda Atlantic and Hawai'i ALOHA time-series stations

    Article • Environmental Science Advances, January 2024, Royal Society of Chemistry

    Dr Leanne C Powers

  8. Direct Evidence of a Light-Dependent Sink of Superoxide within Chromophoric Dissolved Organic Matter

    Article • Environmental Science & Technology, December 2023, American Chemical Society (ACS)

    Dr Leanne C Powers

  9. Fjords Are Potential Hotspots of Refractory Dissolved Organic Matter Production: Insights From 1 Year of Weekly Time‐Series Observations of Fluorescent Dissolved Organic Matter in the Bedford Basin, a Northwestern Atlantic Fjord

    Article • Journal of Geophysical Research Oceans, December 2023, American Geophysical Union (AGU)

    Dr Leanne C Powers

  10. Depth-resolved photochemical production of hydrogen peroxide in the global ocean using remotely sensed ocean color

    Article • Frontiers in Remote Sensing, October 2022, Frontiers

    Dr Leanne C Powers

  11. Controls on Reactive Oxygen Species Cycles in Yellowstone Hot Springs: Implications for Biosignature Preservation on Mars

    Article • Frontiers in Astronomy and Space Sciences, July 2022, Frontiers

    Dr Leanne C Powers

  12. Strong Dynamics in Tidal Marsh DOC Export in Response to Natural Cycles and Episodic Events From Continuous Monitoring

    Article • Journal of Geophysical Research Biogeosciences, July 2022, American Geophysical Union (AGU)

    Dr Leanne C Powers

  13. New Perspectives on the Marine Carbon Cycle–The Marine Dissolved Organic Matter Reactivity Continuum

    Article • Environmental Science & Technology, April 2022, American Chemical Society (ACS)

    Dr Leanne C Powers

  14. Inter‐laboratory differences in the apparent quantum yield for the photochemical production of dissolved inorganic carbon in inland waters and implications for photochemical rate modeling

    Article • Limnology and Oceanography Methods, April 2022, Wiley

    Dr Leanne C Powers

  15. Biodegradation of Terrigenous Organic Matter in a Stratified Large-Volume Water Column: Implications of the Removal of Terrigenous Organic Matter in the Coastal Ocean

    Article • Environmental Science & Technology, March 2022, American Chemical Society (ACS)

    Dr Leanne C Powers

  16. Effects of Added Humic Substances and Nutrients on Photochemical Degradation of Dissolved Organic Matter in a Mesocosm Amendment Experiment in the Gulf of Finland, Baltic Sea

    Article • Photochemistry and Photobiology, February 2022, Wiley

    Dr Leanne C Powers

  17. Biosolids leachate variability, stabilization surrogates, and optical metric selection

    Article • Environmental Science Water Research & Technology, January 2022, Royal Society of Chemistry

    Dr Leanne C Powers

  18. Molecular and optical characterization reveals the preservation and sulfurization of chemically diverse porewater dissolved organic matter in oligohaline and brackish Chesapeake Bay sediments

    Article • Organic Geochemistry, November 2021, Elsevier

    Dr Leanne C Powers

  19. Photoproduction Rates of One-Electron Reductants by Chromophoric Dissolved Organic Matter via Fluorescence Spectroscopy: Comparison with Superoxide and Hydrogen Peroxide Rates

    Article • Environmental Science & Technology, August 2021, American Chemical Society (ACS)

    Dr Leanne C Powers

  20. Reproducible determination of dissolved organic matter photosensitivity

    Article • Biogeosciences, June 2021, Copernicus GmbH

    Dr Leanne C Powers

  21. Combined fluorescent measurements, parallel factor analysis and GC-mass spectrometry in evaluating the photodegradation of PAHS in freshwater systems

    Article • Chemosphere, April 2021, Elsevier

    Dr Leanne C Powers

  22. Contrasting responses of DOM leachates to photodegradation observed in plant species collected along an estuarine salinity gradient

    Article • Biogeochemistry, February 2021, Springer Science + Business Media

    Dr Leanne C Powers

  23. Characterization of landfill leachate molecular composition using ultrahigh resolution mass spectrometry

    Article • Environmental Science Water Research & Technology, January 2021, Royal Society of Chemistry

    Dr Leanne C Powers

  24. Molecular changes among non-volatile disinfection by-products between drinking water treatment and consumer taps

    Article • Environmental Science Water Research & Technology, January 2021, Royal Society of Chemistry

    Dr Leanne C Powers

  25. Microbial Greenhouse Gas Dynamics Associated With Warming Coastal Permafrost, Western Canadian Arctic

    Article • Frontiers in Earth Science, December 2020, Frontiers

    Dr Leanne C Powers

  26. Optical Properties and Photochemical Transformation of the Dissolved Organic Matter Released by Sargassum

    Article • Frontiers in Marine Science, November 2020, Frontiers

    Dr Leanne C Powers

  27. Reproducible determination of dissolved organic matter photosensitivity

    Article • July 2020, Copernicus GmbH

    Dr Leanne C Powers

  28. Tracking the formation of new brominated disinfection by-products during the seawater desalination process

    Article • Environmental Science Water Research & Technology, January 2020, Royal Society of Chemistry

    Dr Leanne C Powers

  29. Sargassum sp. act as a Large Regional Source of Marine Dissolved Organic Carbon and Polyphenols

    Article • Global Biogeochemical Cycles, October 2019, American Geophysical Union (AGU)

    Dr Leanne C Powers

  30. Simulated Sunlight Selectively Modifies Maillard Reaction Products in a Wide Array of Chemical Reactions

    Article • Chemistry - A European Journal, September 2019, Wiley

    Dr Leanne C Powers

  31. The chemodiversity of algal dissolved organic matter from lysed Microcystis aeruginosa cells and its ability to form disinfection by-products during chlorination

    Article • Water Research, May 2019, Elsevier

    Dr Leanne C Powers

  32. Non-targeted screening of disinfection by-products in desalination plants using mass spectrometry: A review

    Article • Current Opinion in Environmental Science & Health, December 2018, Elsevier

    Dr Leanne C Powers

  33. Photochemistry Illuminates Ubiquitous Organic Matter Fluorescence Spectra

    Article • Environmental Science & Technology, August 2018, American Chemical Society (ACS)

    Dr Leanne C Powers

  34. Seasonal changes in dissolved organic matter composition in Delaware Bay, USA in March and August 2014

    Article • Organic Geochemistry, August 2018, Elsevier

    Dr Leanne C Powers

  35. Effect of Photolysis on Absorption and Fluorescence Spectra of Light-Absorbing Secondary Organic Aerosols

    Article • ACS Earth and Space Chemistry, January 2018, American Chemical Society (ACS)

    Dr Leanne C Powers

  36. MoDIE: Moderate dissolved inorganic carbon (DI13C) isotope enrichment for improved evaluation of DIC photochemical production in natural waters

    Article • Marine Chemistry, August 2017, Elsevier

    Dr Leanne C Powers

  37. Low photolability of yedoma permafrost dissolved organic carbon

    Article • Journal of Geophysical Research Biogeosciences, January 2017, American Geophysical Union (AGU)

    Dr Leanne C Powers

  38. Ammonia Oxidation in the Ocean Can Be Inhibited by Nanomolar Concentrations of Hydrogen Peroxide

    Article • Frontiers in Marine Science, November 2016, Frontiers

    Dr Leanne C Powers

  39. Apparent Quantum Efficiency Spectra for Superoxide Photoproduction and Its Formation of Hydrogen Peroxide in Natural Waters

    Article • Frontiers in Marine Science, November 2016, Frontiers

    Dr Leanne C Powers

  40. Using liquid chromatography-isotope ratio mass spectrometry to measure the δ13 C of dissolved inorganic carbon photochemically produced from dissolved organic carbon

    Article • Limnology and Oceanography Methods, November 2016, Wiley

    Dr Leanne C Powers

  41. Probing the photochemical reactivity of deep ocean refractory carbon (DORC): Lessons from hydrogen peroxide and superoxide kinetics

    Article • Marine Chemistry, December 2015, Elsevier

    Dr Leanne C Powers

  42. H 2 O 2 /O 2 − PROXY FOR CO 2 PHOTOPRODUCTION

    Article • Geophysical Research Letters, September 2015, American Geophysical Union (AGU)

    Dr Leanne C Powers, William Miller

  43. Photochemical production of CO and CO2 in the Northern Gulf of Mexico: Estimates and challenges for quantifying the impact of photochemistry on carbon cycles

    Article • Marine Chemistry, April 2015, Elsevier

    Dr Leanne C Powers

  44. Dissolved organic matter composition and photochemical transformations in the northern North Pacific Ocean

    Article • Geophysical Research Letters, February 2015, American Geophysical Union (AGU)

    Dr Leanne C Powers, Prof. Dennis A. Hansell

  45. Reactive Oxygen Species from Space

    Article • Environmental Science Processes & Impacts, January 2014, Royal Society of Chemistry

    William Miller, Dr Leanne C Powers