Analisis Kandungan Logam Berat Pb dan Zn pada Daging Ikan Kakap Putih (Lates Calcarifer) di Perairan Sungai Belawan

Abstract

The research of Pb and Zn heavy metal content of White Snapper meat (Lates calcarifer) was conducted in Belawan River, Deli Serdang Regency on January 2023. The purpose of this study was to analyse the levels of heavy metals Pb and Zn in the water and the meat of White Snapper (Lates calcarifer) at several locations of the Belawan river and to analyse the relationship of heavy metal levels of Pb and Zn in White Snapper (Lates calcarifer) to the physical and chemical factors of waters. This research was conducted using the Purposive Sampling method as many as 3 stations based on differences of areas around the Belawan River Waters, such as areas close to the factories, areas close to the estuaries, areas near the residential areas. The results of research showed that the heavy metal content of Pb and Zn in Belawan river water was classified as close to the quality standards suitable for the life of organisms based on PP RI No. 22 of 2021 with the maximum limit of heavy metal contamination in river water. The results of heavy metal analysis of Pb and Zn in White Snapper meat were safety for the consumption because below from the quality standard based on the Director General of POM No. 03725 / SK / VII / 1989. Analysis of the relationship between Pb and Zn heavy metals on physical and chemical factors of waters is still relatively tolerable based on PP RI No. 22 of 2021 concerning the maximum limit of heavy metal contamination in water.