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
