Item talk:Q46960
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ORCID:
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OpenAlex:
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USGS Staff Profile:
'@context': https://schema.org '@type': Person affiliation: [] description: - '@type': TextObject abstract: Research Chemist with the Upper Midwest Water Science Center additionalType: short description - '@type': TextObject abstract: Sarah Janssen is an isotope geochemist working in the Mercury Research Lab (MRL) located within the Upper Midwest Water Science Center. additionalType: staff profile page introductory statement - '@type': TextObject abstract: "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" additionalType: personal statement email: sjanssen@usgs.gov hasCredential: - '@type': EducationalOccupationalCredential name: Ph.D. 2016, Environmental Chemistry, Rutgers University, New Brunswick, NJ - '@type': EducationalOccupationalCredential name: B.S. 2011, Chemistry, University of the Sciences, Philadelphia, PA hasOccupation: - '@type': OrganizationalRole affiliatedOrganization: '@type': Organization name: Upper Midwest Water Science Center url: https://www.usgs.gov/centers/upper-midwest-water-science-center roleName: Research Chemist startDate: '2024-05-12T15:14:09.195535' - '@type': OrganizationalRole affiliatedOrganization: '@type': Organization name: Mercury Research Laboratory url: https://www.usgs.gov/labs/mercury-research-laboratory roleName: Mercury Research Laboratory Team Lead startDate: '2024-05-12T15:14:09.206902' identifier: - '@type': PropertyValue propertyID: GeoKB value: https://geokb.wikibase.cloud/entity/Q46960 - '@type': PropertyValue propertyID: ORCID value: 0000-0003-4432-3154 jobTitle: Research Chemist knowsAbout: - '@type': Thing additionalType: self-claimed expertise name: mercury cycling - '@type': Thing additionalType: self-claimed expertise name: stable isotope geochemistry - '@type': Thing additionalType: self-claimed expertise name: contaminated sites - '@type': Thing additionalType: self-claimed expertise name: bioaccumulation - '@type': Thing additionalType: self-claimed expertise name: aquatic ecosystems memberOf: '@type': OrganizationalRole member: '@type': Organization name: U.S. Geological Survey name: staff member startDate: '2024-05-12T15:14:09.192864' name: Sarah E Janssen url: https://www.usgs.gov/staff-profiles/sarah-e-janssen
