The aim of the present study was to appraise the levels of heavy metal
contamination (Zn and Pb) in sediment of the Langat River (Selangor, Malaysia).
Samples were collected randomly from 15 sampling stations located along the
Langat River. The parameters measured were pH, redox potential, salinity,
electrical conductivity, loss of ignition, cation exchanges capacity (Na, Mg, Ca,
K), and metal ions (Zn and Pb).

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