Pencemaran Kadmium Di Sedimen Waduk Saguling Provinsi Jawa Barat (Cadmium Pollution in Saguling Dam Sediment West Java Province)

摘要

Citarum river is the main water source for Saguling Dam. The river waters quality has decreased even observed some heavy metals contained in the water. The aims of this study to assess Cd contamination in Saguling sediments in two different seasons. Location of the study conducted at 10 points in Saguling. The study evaluated the differences concentration of Cd in July 2015 represents the dry season and November 2015 represents the rainy season. Surface sediments samples taken from 0-10 cm a depth. Cd concentrations in sediments were analyzed using ICP-MS. Sediment contamination level assessed using two methods which are Contamination Factor (CF), and Metal Pollution Index (MPI). Based on the research Cd concentration in water for a decade beginning in 2008-2014 tended to increase, with concentrations ranging from 0 mg/L-0.14 mg/L. Average concentrations of Cd in sediments Saguling in July 2015 represents the dry season was 13.54 mg/kg, while in November 2015 amounted to 21.08 mg/kg. Cd concentrations in Saguling sediments not meet the quality standards based on Australian and New Zaeland standard of 1.5 mg/kg. Sediments quality assessment using the CF the category of very high contamination at all samples points in Saguling, while based on the MPI sediment quality Saguling polluted by heavy metals Cd. Results of this study can be considered for the management Saguling on the condition that heavy metal pollution occurs in the reservoir.