It is estimated that 100,000 tons of this mercury is washed out of the atmosphere by rain annually. Volcanic activity and leaching add to this amount of mercury. As a result, almost all living things have mercury in their bodies. Man's production of mercury, only about 10,000 tons yearly, creates problems because it concentrates high levels of mercury at a few geographic locations. Partial list of metallic poisons Antimony is used in the manufacture of foil, batteries, ceramics, safety matches, textiles.
Fatalities are rare.
Acid treatment of metals containing antimony releases stibine. Antimony irritates the mucous membranes and tissues. Arsenic has caused severe health problems in drinking water in Asia and in South and North America. Dust and fumes must be controlled and no beryllium should be allowed in air in the workplace. Cadmium is used in plating metals and solders.