Mercury, also known as quicksilver, is a heavy, silvery-white metal which is liquid at room temperature and evaporates easily. In nature it is usually found in the form of cinnabar, used in the past as a red pigment. Cinnabar deposits have been mined for centuries to produce mercury, but cinnabar and other natural forms of mercury can also occur in deposits of other metals such as lead and zinc. They may also be found in small amounts in a wide range of rocks including coal and limestone. Mercury can be released into the air, water and soil through industrial processes including mining, metal and ce-
ment production, and through fuel extraction and the com- bustion of fossil fuels.
Mercury has been used since antiquity. Archaeologists have recovered traces from Mayan tombs and from the remains of Islamic Spain (Bank, 2012). The first emperor of unified China is said to have died after ingesting mercury pills intended to give him eternal life (Asia History website). Metallic mercury is still used in some herbal and religious remedies in Latin America, Asia and Caribbean rituals (ATSDR, 1999).
Mercury is a heavy, silvery-white metal which is liquid at room temperature and evaporates easily.