The distribution and
accumulation of heavy metals in the surface sediment of Lake Junin National
Reserve was evaluated using the pollution factor (CF), pollution load index (PLI)
and geoaccumulation index (Igeo),
during 2018. Surface sediment samples were collected from 10 sampling sites,
with three repetitions, during the rainy and
dry seasons. The heavy metals determined were Fe, Cu, Cr, Cd, Pb and Zn; As,
was also determined. The results revealed the descending order of Fe> Cu> Zn> As>Pb> Cd> Cr concentrations recorded
in the three sampling sectors. The values of the CF obtained for the metals qualified as low CF, in times of rain and low water. The CFvalues of Cd were qualified
as moderate contamination factors at all sampling sites, except at LJ1 where it qualified as CFconsiderable.
The
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