Attached data files include the following:

Hair_TM.xlsx : Concentrations of trace minerals (Na, Mg, Mn, Fe, Co, Cu, Zn, Se, Mo, Cd, Pb) detected in hair samples from study population of Northern Mountain caribou, expressed in mg/kg.

Liver_KeyTM.xlsx: Concentrations of trace minerals (Cd, Cu, Mg, Mn, Mo, Se, Zn, Fe, Pb, Co) detected in liver tissues sampled from study population of Northern Mountain caribou, expressed in mg/kg.

Kidney_KeyTM.xlsx : Concentrations of trace minerals (Cd, Cu, Mg, Mn, Mo, Se, Zn, Fe, Pb, Co) detected in kidney tissues sampled from study population of Northern Mountain caribou, expressed in mg/kg.

minerals_wetweight.xlsx : Concentrations of trace minerals (Cd, Co, Cu, Fe, Pb, Mn, Mo, Se, Zn) detected in liver and kidney tissues sampled from study population of Northern Mountain caribou, expressed in mg/kg wet weight.

Hair samples were analyzed at the Alberta Centre for Toxicology. Liver and kidney samples were analyzed at ALS Environmental (Vancouver, B.C.). Further details on methods and data are included in accompanying publication: PONE-D-21-34166R1 Evaluating the use of hair as a non-invasive indicator of trace mineral status in woodland caribou (<i>Rangifer tarandus caribou</i>)

Any inquiries regarding methodology, data, analyses, or interpretation can be directed to the primary author: Naima_Jutha@gov.nt.ca or Naima.Jutha@gmail.com