Serem .K. Wilson
(Moi Univesity, 2002-07)
The study showed that rocks had the highest contents of heavy metals, with nickel and iron ranging from: 26.5 - 103750 and 174.5 - 4985 mg/kg respectively. Lead and copper in rocks also ranged from: 2.1 - 4000 and 0.1 - ...