Calculation of heavy metals pollution load enters to Saguling dam West Java Province

Abstract

The current study aims to assess the trace metals concentration in water and sediments from rivers entering Saguling Dam and calculate their pollution load. Water and surface sediment samples were collected in September 2017 during the dry season. Seven rivers which are Citarum, Cihaur, Cijere, Cimerang, Cipatik, Cijambu, and Ciminyak. Trace metals were analyzed using Inductively Coupled Plasma/Mass Spectrometry (ICP-MS). Based on the measurement of the total discharge that enters the Saguling Dam from 7 rivers of 20.074 m3s-1. Cr and Cu pollute river water. Seminyak River has the highest Cr concentration of 0.096 mg-1, and the lowest is Cimerang River 0.054 mgL-1. High Cu concentration does not meet the Citarum River, Cimerang, and Cipatik with respective concentrations of 0.038, 0.029, and 0.031 mgL-1. River sediments have heavy metal content that exceeds the standard. These metals are derived from anthropogenic sources in the catchment area. Pollution load of all the rivers that go into Saguling Dam for parameter Cd, Cr and Cu respectively 7.654, 149.128, and 63.435 kg.day-1. The most significant contributor comes from the Citarum River, which is the largest river in this area. The results obtained would help develop more effective dam management.