Molecular evidence for novel mercury methylating microorganisms in sulfate-impacted lakes DS Jones, GM Walker, NW Johnson, CPJ Mitchell, JK Coleman Wasik, ... The ISME journal 13 (7), 1659-1675, 2019 | 67 | 2019 |
Influence of porewater sulfide on methylmercury production and partitioning in sulfate-impacted lake sediments LT Bailey, CPJ Mitchell, DR Engstrom, ME Berndt, JKC Wasik, ... Science of the Total Environment 580, 1197-1204, 2017 | 46 | 2017 |
Effects of sulfate and sulfide on the life cycle of Zizania palustris in hydroponic and mesocosm experiments J Pastor, B Dewey, NW Johnson, EB Swain, P Monson, EB Peters, ... Ecological Applications 27 (1), 321-336, 2017 | 45 | 2017 |
Quantitative dissolution of environmentally accessible iron residing in iron-rich minerals: a review JL Voelz, NW Johnson, CL Chun, WA Arnold, RL Penn ACS Earth and Space Chemistry 3 (8), 1371-1392, 2019 | 42 | 2019 |
Increase in nutrients, mercury, and methylmercury as a consequence of elevated sulfate reduction to sulfide in experimental wetland mesocosms A Myrbo, EB Swain, NW Johnson, DR Engstrom, J Pastor, B Dewey, ... Journal of Geophysical Research: Biogeosciences 122 (11), 2769-2785, 2017 | 39 | 2017 |
Biogeochemical changes and mercury methylation beneath an in-situ sediment cap NW Johnson, DD Reible, LE Katz Environmental science & technology 44 (19), 7280-7286, 2010 | 38 | 2010 |
Diverse Communities of hgcAB+ Microorganisms Methylate Mercury in Freshwater Sediments Subjected to Experimental Sulfate Loading DS Jones, NW Johnson, CPJ Mitchell, GM Walker, JV Bailey, J Pastor, ... Environmental science & technology 54 (22), 14265-14274, 2020 | 36 | 2020 |
Methylmercury production in a chronically sulfate-impacted sub-boreal wetland NW Johnson, CPJ Mitchell, DR Engstrom, LT Bailey, JKC Wasik, ... Environmental Science: Processes & Impacts 18 (6), 725-734, 2016 | 31 | 2016 |
Modeling hydrologic controls on sulfur processes in sulfate‐impacted wetland and stream sediments GHC Ng, AR Yourd, NW Johnson, AE Myrbo Journal of Geophysical Research: Biogeosciences 122 (9), 2435-2457, 2017 | 25 | 2017 |
Iron sulfide formation on root surfaces controlled by the life cycle of wild rice (Zizania palustris) S LaFond-Hudson, NW Johnson, J Pastor, B Dewey Biogeochemistry 141 (1), 95-106, 2018 | 22 | 2018 |
Microbial and reactive transport modeling evidence for hyporheic flux‐driven cryptic sulfur cycling and anaerobic methane oxidation in a sulfate‐impacted wetland‐stream system GHC Ng, CE Rosenfeld, CM Santelli, AR Yourd, J Lange, K Duhn, ... Journal of Geophysical Research: Biogeosciences 125 (2), e2019JG005185, 2020 | 17 | 2020 |
Geochemical factors influencing the production and transport of methylmercury in St. Louis River Estuary sediment BF Beck, NW Johnson Applied geochemistry 51, 44-54, 2014 | 14 | 2014 |
Cumulative sulfate loads shift porewater to sulfidic conditions in freshwater wetland sediment NW Johnson, J Pastor, EB Swain Environmental toxicology and chemistry 38 (6), 1231-1244, 2019 | 12 | 2019 |
The utility of solid‐phase microextraction in evaluating polycyclic aromatic hydrocarbon bioavailability during habitat restoration with dredged material at moderately … AA Brennan, NW Johnson Integrated environmental assessment and management 14 (2), 212-223, 2018 | 11 | 2018 |
Interactions between sulfide and reproductive phenology of an annual aquatic plant, wild rice (Zizania palustris) S LaFond-Hudson, NW Johnson, J Pastor, B Dewey Aquatic Botany 164, 103230, 2020 | 10 | 2020 |
Impact of dissolved organic matter on porewater Hg and MeHg concentrations in St. Louis River estuary sediments ML Kneer, A White, KR Rolfhus, JD Jeremiason, NW Johnson, ... ACS Earth and Space Chemistry 4 (8), 1386-1397, 2020 | 7 | 2020 |
Seasonal and spatial variations in methylmercury in the water column of sulfate-impacted lakes L Bailey, N Johnson, C Mitchell, D Engstrom, J Coleman-Wasik, M Kelly, ... Minnesota Department of Natural Resources, 2014 | 5 | 2014 |
Sulfur Geochemistry Destabilizes Population Oscillations of Wild Rice (Zizania palustris) S LaFond‐Hudson, NW Johnson, J Pastor, B Dewey Journal of Geophysical Research: Biogeosciences 127 (8), e2022JG006809, 2022 | 4 | 2022 |
Response of rooting zone geochemistry to experimental manipulation of sulfate levels in Wild Rice mesocosms NW Johnson MPCA Report. December, 2013 | 4 | 2013 |
Stochastic framework for addressing chemical partitioning and bioavailability in contaminated sediment assessment and management AA Brennan, DR Mount, NW Johnson Environmental science & technology 55 (16), 11040-11048, 2021 | 3 | 2021 |