Heavy Metal Contain Pb, Hg, Cd and Cu in Whiting Fish (Sillago sihama) Muscle in estary of Donan River, Cilacap, Central Java

Abstract

Waste produced by industrial activities in Donan River the may a heavy metals which is one source of harmful pollutant to the aquatic environment. This study was conducted every month from August 2015 to January 2016 at the waters of the river estuary Donan. The aims of this study was analyze the content of heavy metals Pb, Hg, Cd and Cu in whiting fish muscle, and determine the tolerance limit to consume fish that contain heavy metals. The average content of heavy metal in whiting fish muscle by reading Atomic Absorption Spectrophotometry (AAS) on a monthly basis exeded than standard limit, but there are also still belowstandard limit. The value consist of 1,24-9,29 ppm (Pb); 304,50-4535,22 ppb (Hg); 0,11-0,56 ppm (Cd); dan 0,36-1,39 ppm (Cu). The maximum limit of fish muscle for adults (50 kg bb) and children (15 kg bb) was 17,6 y 4 g muscle week-1 and was 5,29 g muscle week-1.