... compounds.Cadmium is found mainly in the crust. Always occurs in combination with zinc. Cadmium also consists in the industries as an inevitable by ... and pesticides.Of course, a very large amount of cadmium in the environment are released, about 25,000 tons per year. ... about 14 000 tonnes per year, the main producing country is Canada, to be the main supplier to the United States, Australia, Mexico, ...