title: Tracing contaminants with delta15N measurements.
authors.forename: Keith A
authors.initials: KA
authors.lastname: Hobson
mesh_terms: D000818:Animals; D001110:Arctic Regions; D001717:Birds; D004785:Environmental Pollutants / Q000032:analysis*; D005618:Fresh Water / Q000737:chemistry; D019015:Geologic Sediments / Q000737:chemistry; D008372:Manure / Q000032:analysis; D009587:Nitrogen Isotopes / Q000032:analysis*
chemical_list: D004785:Environmental Pollutants; D008372:Manure; D009587:Nitrogen Isotopes