Analysis of lead (Pb) and cadmium (Cd) concentration in Tawes Fish Barbonymus gonionotus (Bleeker, 1850) in Lakes of Tempe, Sidenreng and Lapompakka, South Sulawesi

Abstract

Tempe, Sidenreng and Lapompakka lakes have potential fisheries. One species mostly consumed is Tawes, Barbonymus gonionotus. Household waste, and industrial and agricultural activities around the lake are suspected to be the source of metal pollution to these lakes and their organism, particularly of lead (Pb) and cadmium (Cd). This study aim to analyze the lead (Pb) and cadmium (Cd) concentration in Tawes, Barbonymus gonionotus and to determine whether this Tawes species is still safe to be consumed. Total samples collected were 54 fish. The Pb and Cd concentration was determined from the fish flesh and analyzed using the Atomic Absorption Spectrophotometry (AAS) method and presented descriptively. The results showed that the concentrations of Pb and Cd in this species of all three lakes were not detected. Based on the quality standards for metal contamination of Pb and Cd in the fish and its processed products according to SNI (2011), the concentrations of Pb and Cd in the three lakes have not exceeded the standard, meaning that Tawes fish is still suitable for consumption.