Search Results - "Stegemeier, John P"

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  1. 1

    Uptake and Distribution of Silver in the Aquatic Plant Landoltia punctata (Duckweed) Exposed to Silver and Silver Sulfide Nanoparticles by Stegemeier, John P, Colman, Benjamin P, Schwab, Fabienne, Wiesner, Mark R, Lowry, Gregory V

    Published in Environmental science & technology (02-05-2017)
    “…Aquatic ecosystems are expected to receive Ag0 and Ag2S nanoparticles (NPs) through anthropogenic waste streams. The speciation of silver in Ag-NPs affects…”
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    Journal Article
  2. 2

    Effect of Initial Speciation of Copper- and Silver-Based Nanoparticles on Their Long-Term Fate and Phytoavailability in Freshwater Wetland Mesocosms by Stegemeier, John P., Avellan, Astrid, Lowry, Gregory V.

    Published in Environmental science & technology (07-11-2017)
    “…Ag0- and CuO-engineered nanomaterials (ENMs) or their sulfidized forms are introduced into freshwater wetlands through wastewater effluent and agricultural…”
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    Journal Article
  3. 3

    Speciation Matters: Bioavailability of Silver and Silver Sulfide Nanoparticles to Alfalfa (Medicago sativa) by Stegemeier, John P, Schwab, Fabienne, Colman, Benjamin P, Webb, Samuel M, Newville, Matthew, Lanzirotti, Antonio, Winkler, Christopher, Wiesner, Mark R, Lowry, Gregory V

    Published in Environmental science & technology (21-07-2015)
    “…Terrestrial crops are directly exposed to silver nanoparticles (Ag-NPs) and their environmentally transformed analog silver sulfide nanoparticles (Ag2S-NPs)…”
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  4. 4

    Effects of Sulfide Concentration and Dissolved Organic Matter Characteristics on the Structure of Nanocolloidal Metacinnabar by Poulin, Brett A, Gerbig, Chase A, Kim, Christopher S, Stegemeier, John P, Ryan, Joseph N, Aiken, George R

    Published in Environmental science & technology (21-11-2017)
    “…Understanding the speciation of divalent mercury (Hg­(II)) in aquatic systems containing dissolved organic matter (DOM) and sulfide is necessary to predict the…”
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  5. 5

    Impacts of Pristine and Transformed Ag and Cu Engineered Nanomaterials on Surficial Sediment Microbial Communities Appear Short-Lived by Moore, Joe D, Stegemeier, John P, Bibby, Kyle, Marinakos, Stella M, Lowry, Gregory V, Gregory, Kelvin B

    Published in Environmental science & technology (01-03-2016)
    “…Laboratory-based studies have shown that many soluble metal and metal oxide engineered nanomaterials (ENM) exert strong toxic effects on microorganisms…”
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  6. 6

    Aging of Dissolved Copper and Copper‐based Nanoparticles in Five Different Soils: Short‐term Kinetics vs. Long‐term Fate by Sekine, Ryo, Marzouk, Ezzat R., Khaksar, Maryam, Scheckel, Kirk G., Stegemeier, John P., Lowry, Gregory V., Donner, Erica, Lombi, Enzo

    Published in Journal of environmental quality (01-11-2017)
    “…With the growing availability and use of copper‐based nanomaterials (Cu‐NMs), there is increasing concern regarding their release and potential impact on the…”
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    Journal Article
  7. 7

    Speciation of Mercury in Selected Areas of the Petroleum Value Chain by Avellan, Astrid, Stegemeier, John P, Gai, Ke, Dale, James, Hsu-Kim, Heileen, Levard, Clément, O’Rear, Dennis, Hoelen, Thomas P, Lowry, Gregory V

    Published in Environmental science & technology (06-02-2018)
    “…Petroleum, natural gas, and natural gas condensate can contain low levels of mercury (Hg). The speciation of Hg can affect its behavior during processing,…”
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  8. 8

    Formation of Nanocolloidal Metacinnabar in Mercury-DOM-Sulfide Systems by Gerbig, Chase A, Kim, Christopher S, Stegemeier, John P, Ryan, Joseph N, Aiken, George R

    Published in Environmental science & technology (01-11-2011)
    “…Direct determination of mercury (Hg) speciation in sulfide-containing environments is confounded by low mercury concentrations and poor analytical sensitivity…”
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    Journal Article