Risk Analysis of Cr and Cu Heavy Metals in the Ciwaringin Watershed

Abstract

There are many human activities around the Ciwaringin River Basin which can cause polluted water, one of the pollutant substances is heavy metals. The purpose of this study was to measure the concentration and analyze the risk of exposure to the heavy metals Cr and Cu contained in river water. This research was conducted in the Ciwaringin River, Bogor Regency. Sampling was carried out 3 times in April, June and October 2020 at 4 different sampling points. Method: The data used is secondary data from the Department of Environment and Forestry. Based on the results of the study, it can be concluded that the average concentrations of the heavy metals Cr and heavy metals Cu when compared with the quality standards of class 1 PP No. 82 of 2001 the results of the concentration of heavy metals Cr and heavy metals Cu are lower than the quality standard. The risk of heavy metal Cr and Cu metal contamination has a risk value of ≤ 1, which means that the Raja Galuh River, Palimanan River, Cendrawasih River, and Kapetakan River are not at risk