DETERMINATION OF HEAVY METALS (Pb, Mn and Cr) CONCENTRATION IN MINING SITES IN BIRNIN GWARI LGA, KADUNA STATE, NIGERIA USING ATOMIC ABSORPTION SPECTROPHOTOMETRY (AAS) TECHNIQUE  

2017-10-10
Mining has been one of the major sources of ecosystem exposure to toxic heavy metals with little measures taken to address their effects in developing countries. Gold mining (artisanal and ...