1. In this study, we reported major heavy metal residues such as chrome, copper, cadmium, hydrargyrum, lead, zinc, metalloid in comb scallop, which live besides Shandong province.

2. Calomel black lotion , blackwash - a mixture of Calomel and limewater that is used on syphilitic sores atomic number 80 , Hg , hydrargyrum , mercury , quicksilver - a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures