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                            Library & Multimedia
 Strontium Fsotope Ratios of Human Hair Record Intra-city Variations in Tap Water Source
NCJ Number
              253497

Author(s)
          Brett J. Tipple;
                        Luciano O. Valenzuela;
                        James R. Ehleringer
Date Published

2018
Length
              8 pages
Annotation
              In order to better understand the impact of various contributions to the spatial signal encoded within 87Sr/86Sr of hair, human hair was collected from three locations within Salt Lake City, Utah along with the donor's sex.
Abstract
              The oxygen (18O/16O) isotope analysis of hair is commonly applied to reconstruct an individual's residence history; however, region-of-origin as determined from oxygen isotope values (delta18O) alone is often spatially indistinct. Adding additional geochemical recorders can refine region-of-origin estimates. In this capacity, strontium (87Sr/86Sr) isotope analysis has attracted increased interest. Although 87Sr/86Sr reflects the influences of local geology, 87Sr/86Sr of hair includes both external environmental signals as well as the internal dietary indicators. In the current study, the 87Sr/86Sr and delta 18O of hair and local tap water were measured. There were no significant relationships between sex and either delta 18O or 87Sr/86Sr of hair, nor between collection location and the delta 18O of hair; however, the study found significant associations between collection location and 87Sr/86Sr of hair. These findings suggest that interactions with local water may be an important source of Sr to human hair and that the 87Sr/86Sr of hair may have the capacity to record differences in 87Sr/86Sr of tap waters on small spatial scales. (publisher abstract modified)
      
  
          Additional Details
Grant Number(s)
        2011-DN-BX-K544


  
  
        
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        NIJ-Sponsored


  
  
        
  Publication Type
        Research (Applied/Empirical)
                                Report (Study/Research)
                                Report (Grant Sponsored)
                                Program/Project Description


  
  
        
  Award
        Isotope Analyses of Hair as a Trace Evidence Tool to Reconstruct Human Movements: Combining Strontium Isotope with Hydrogen/Oxygen Isotope Data
    
  
  
Date Published: January 1, 2018
    
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