Item talk:Q46960

usgs_staff_profile:

 meta:
   status_code: 200
   timestamp: '2023-09-30T16:45:14.544199'
   url: https://www.usgs.gov/staff-profiles/sarah-e-janssen
 profile:
   abstracts: []
   affiliations: []
   education:
   - Ph.D. 2016, Environmental Chemistry, Rutgers University, New Brunswick, NJ
   - B.S. 2011, Chemistry, University of the Sciences, Philadelphia, PA
   email: sjanssen@usgs.gov
   expertise_terms:
   - mercury cycling
   - stable isotope geochemistry
   - contaminated sites
   - bioaccumulation
   - aquatic ecosystems
   honors: []
   intro_statements:
   - Sarah Janssen is an isotope geochemist working in the Mercury Research Lab (MRL)
     located within the Upper Midwest Water Science Center.
   name: Sarah E Janssen
   name_qualifier: null
   orcid: 0000-0003-4432-3154
   organization_link: https://www.usgs.gov/centers/upper-midwest-water-science-center
   organization_name: Upper Midwest Water Science Center
   personal_statement: "She has a PhD in environmental chemistry from Rutgers University\
     \ and a bachelor\u2019s in chemistry fromUniversity of the Sciences in Philadelphia.\
     \ Her work focuses on the application of stable isotope techniques for understanding\
     \ sources and transformations of mercury (Hg) in the environment. Her research\
     \ interests include Hg cycling in contaminated ecosystems, the investigation\
     \ of microbial Hg transformations using stable isotopes, and development of\
     \ analytical methods to improve Hg isotope measurements.Current ProjectsMercury\
     \ Cycling and Source Identification in the St Louis River Estuary MN/WI (collaboration\
     \ with US EPA and Minnesota Pollution Control Agency)Mercury Isotope Fractionation\
     \ during Microbial Uptake and Transformations of Hg (collaboration with Rutgers\
     \ University and University of Ottawa)Method Development for the Pre-concentration\
     \ of Waters and Low Concentration Environmental Samples for Mercury Isotopic\
     \ Analysis"
   professional_experience: []
   title: Research Chemist