Heavy Metals
The term heavy metal refers to any metallic chemical element that has a relatively high density and is toxic or poisonous at low concentrations. Examples of heavy metals include mercury (Hg), cadmium (Cd), arsenic (As), chromium (Cr), thallium (Tl), and lead (Pb)
Avalaible at
BBP2HP Jakarta
FPIK IPB 
FPIK UGM
PSO LIPI
