Please can anyone help me with the standard background values accepted for all trace elements in Ghana or specifically for upper east region?

I need the accepted standard background values for these elements; cl,v,cu,co,Ni,zn,Ga,As,Rb,Sr,Y,Zr,Nb,Mo,Cs,Ba,La,Ce,Hf,Ta,Pb,Bi,Th,U. My study area is in the upper east region of Ghana,...

29 September 2022 2,691 1 View