Bio-concentration of Copper in the Oreochromis mossambicus and Safe Level of Consumption

Ailsa Devina Rosahada,Budiyono Budiyono,Nikie Astorina Dewanti

doi:10.15294/ujph.v10i1.37786

Ailsa Devina Rosahada, Budiyono Budiyono + Show 1 more

Open Access

https://doi.org/10.15294/ujph.v10i1.37786

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Abstract

Copper (Cu) is a heavy metal that is absorbed by organisms, such as Oreochromis mossambicus fish. This research aims to measure the bio-concentration of Cu in Oreochromis mossambicus and to predict the daily consumption of the fish. Samples of Oreochromis mossambicus fish were obtained from fishermen and collectors. The Cu concentration in the water and 30 fish was identified using the Atomic Absorption Spectrophotometry method. Questionnaires were employed to identify the demographic data of 101 respondents. The average concentration of Cu in the Oreochromis mossambicus fish and Rawapening Lake's water was 0.063 mg/l and 0.6 mg/kg, respectively. Furthermore, the bio-concentration of Cu in the Oreochromis mossambicus fish was 10.26±5.17 and categorized as low, while the average daily consumption of fish was 225±36.89 g/day. Therefore, it was concluded that the average bio-concentration and the daily consumption of the fish are in the low and safe category respectively.

Highlights

The water sources in Rawapening Lake are from the rainwater, groundwater, and the river flow originating from the nine sub-watersheds (Kementerian Lingkungan Hidup Republik Indonesia, 2011)
The water sources of the Rawapening Lake are from the springs inside the lake and from the rivers flowing into the lake
This study found that the Cu concentration in the Oreochromis mossambicus fish was low

Summary

Introduction

The water sources in Rawapening Lake are from the rainwater, groundwater, and the river flow originating from the nine sub-watersheds (Kementerian Lingkungan Hidup Republik Indonesia, 2011). Based on the previous research, it was found that the content of heavy metals Cu in the lake water was 2.032 mg/l and the standard quality in Indonesia was 0.02 mg/l (Peraturan Pemerintah, 2001; Hidayah et al, 2012). According to ATSDR (Agency for Toxic Substances and Disease Registry), the content of Cu in the surface water (lake and river) was obtained with the median value of 10 ppb (Agency for Toxic Substances and Disease Registry, 2004). This research discovered that there was an increase of Cu level in the water of Rawapening Lake compared with the previous studies which obtained the level of Cu at 0.049 mg/l (Hidayah et al, 2012)

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