Analisis Kandungan Logam Pb, Cu Dan Zn Pada Daging Kerang (Anadara Granosa ) …

ABSTRACT This research was conducted from January to April 2019 by taking samples of blood cockles from the waters of the Asahan river, Tanjungbalai city, North Sumatra Province. The purpuse of this research were to know the metal concentrations of Pb, Cu and Zn in different station and different sizes of blood cockle’s shell (Anadara granosa), as well as to find out the level of metal pol…