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Marine Sciences Division

Nicholas Schlafer

Nicholas Schlafer

Marine Sciences Laboratory
Pacific Northwest National Laboratory
1529 West Sequim Bay Road
Sequim, Washington 98382


Mr. Schlafer has been with PNNL since 2015 and is currently a technician in the Coastal Sciences Division of Pacific Northwest National Laboratory at the Marine Sciences Laboratory. Nicholas holds a Bachelor of Science degree in Environmental Science from the University of Washington. He was hired as a research associate to work on the Uranium from Seawater project and the ENVVEST project monitoring water quality at Puget Sound Naval Shipyard and its surrounding water bodies. Over the past two years working in the EED’s Marine Sciences Laboratory Nicholas has expanded his research examining the behavior, fate, and transport of inorganic and organic contaminants in the marine environment. His responsibilities include sample collection and analysis for; pH, salinity, dissolved organic carbon, nitrogen, dissolved oxygen, and total suspended solids. He has also worked on assembling and compiling data from fieldwork and analytical efforts and performs data reduction for reports, along with performing data reviews for quality assurance purposes.

Research Interests

  • Interactions of organic contaminates in the marine environment
  • Selection of trace metals from seawater using amidoxime-based adsorbents
  • Trace metal contaminates in marine systems
  • Analysis of water quality data
  • Data management, quality control, and data reviews

Education and Credentials

  • B.S., Environmental Science, University of Washington, 2013

PNNL Publications


  • Kuo LJ, GA Gill, C Tsouris, L Rao, HB Pan, CM Wai, CJ Janke, JE Strivens, JR Wood, NJ Schlafer, and E D'Alessandro. 2018. "Temperature Dependence of Uranium and Vanadium Adsorption on Amidoxime-Based Adsorbents in Natural Seawater." ChemistrySelect 3(2):843-848.  doi:10.1002/slct.201701895


  • Kuo LJ, HB Pan, CM Wai, M Flicker Byers, E Schneider, JE Strivens, CJ Janke, S Das, RT Mayes, JR Wood, NJ Schlafer, and GA Gill. 2017. "Investigations into the reusability of amidoxime-based polymeric adsorbents for seawater uranium extraction." Industrial and Engineering Chemistry Research 56(40):11603-11611.  doi:10.1021/acs.iecr.7b02893
  • Ladshaw A, LJ Kuo, JE Strivens, JR Wood, NJ Schlafer, S Yiacoumi, C Tsouris, and GA Gill. 2017. "Influence of Current Velocity on Uranium Adsorption from Seawater Using an Amidoxime-based Polymer Fiber Adsorbent." Industrial and Engineering Chemistry Research 56(8):2205-2211.  doi:10.1021/acs.iecr.6b04539


  • Gill GA, LJ Kuo, CJ Janke, J Park, RT Jeters, GT Bonheyo, HB Pan, C Wai, T Khangaonkar, L Bianucci, JR Wood, MG Warner, SM Peterson, DG Abrecht, R Mayes, C Tsouris, Y Oyola, JE Strivens, NJ Schlafer, RS Addleman, W Chouyyok, S Das, J Kim, KO Buesseler, C Breier, and E D'Alessandro. 2016. "The Uranium from Seawater Program at the Pacific Northwest National Laboratory: Overview of Marine Testing, Adsorbent Characterization, Adsorbent Durability, Adsorbent Toxicity, and Deployment Studies." Industrial and Engineering Chemistry Research 55(15):4264-4277.  doi:10.1021/acs.iecr.5b03649
  • Gill GA, LJ Kuo, JE Strivens, JR Wood, NJ Schlafer, and E D'Alessandro. 2016. Uranium from Seawater Marine Testing Program at the University of Miami's Broad Key Island Research StationPNNL-25734, Pacific Northwest National Laboratory, Richland, WA. 
  • Gill GA, LJ Kuo, JE Strivens, JR Wood, NJ Schlafer, C Tsouris, CJ Janke, S Das, R Mayes, T Saito, SS Brown, C Tsouris, CM Wai, and HB Pan. 2016. Summary of Adsorption Capacity and Adsorption Kinetics of Uranium and Other Elements on Amidoxime-based Adsorbents from Time Series Marine Testing at the Pacific Northwest National LaboratoryPNNL-25899, Pacific Northwest National Laboratory, Richland, WA. 
  • Kuo LJ, GA Gill, JE Strivens, JR Wood, NJ Schlafer, CM Wai, and HB Pan. 2016. Investigations Into the Reusability of Amidoxime-Based Polymeric Uranium AdsorbentsPNNL-25874, Pacific Northwest National Laboratory, Richland, WA. 
  • Park J, RT Jeters, LJ Kuo, JE Strivens, GA Gill, NJ Schlafer, and GT Bonheyo. 2016. "Potential impact of seawater uranium extraction on marine life." Industrial and Engineering Chemistry Research 55(15):4278-4284.  doi:10.1021/acs.iecr.5b03430
  • Park J, GA Gill, JE Strivens, LJ Kuo, RT Jeters, A Avila, JR Wood, NJ Schlafer, CJ Janke, EA Miller, M Thomas, RS Addleman, and GT Bonheyo. 2016. "Effect of biofouling on the performance of amidoxime-based polymeric uranium adsorbents." Industrial and Engineering Chemistry Research 55(15):4328-4338.  doi:10.1021/acs.iecr.5b03457


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Marine Sciences Laboratory
1529 W. Sequim Bay Road
Sequim, WA 98382
Phone: (360) 683-4151
Fax: (360) 681-3699