<P> Cadmium is an extremely toxic metal commonly found in industrial workplaces . Due to its low permissible exposure limit, overexposures may occur even in situations where trace quantities of cadmium are found . Cadmium is used extensively in electroplating, although the nature of the operation does not generally lead to overexposures . Cadmium is also found in some industrial paints and may represent a hazard when sprayed . Operations involving removal of cadmium paints by scraping or blasting may pose a significant hazard . Cadmium is also present in the manufacturing of some types of batteries . Exposures to cadmium are addressed in specific standards for the general industry, shipyard employment, construction industry, and the agricultural industry . </P> <P> Copper toxicity, also called copperiedus, refers to the consequences of an excess of copper in the body . Copperiedus can occur from eating acid foods cooked in uncoated copper cookware, or from exposure to excess copper in drinking water, as a side - effect of estrogen birth control pills, or other environmental sources . It can also result from the genetic condition Wilson's disease . </P> <P> Iron poisoning is an iron overload caused by a large excess of iron intake and usually refers to an acute overload rather than a gradual one . The term has been primarily associated with young children who consumed large quantities of iron supplement pills, which resemble sweets and are widely used, including by pregnant women--see overnutrition (approximately 3 grams is lethal for a 2 year old). Targeted packaging restrictions in the US for supplement containers with over 250 mg elemental iron have existed since 1978, and recommendations for unit packaging have reduced the several iron poisoning fatalities per year to almost nil since 1998 . No known cases of iron poisoning have been identified that are associated with iron mining . </P> <P> Lead poisoning is a medical condition in humans and other vertebrates caused by increased levels of the heavy metal lead in the body . Lead interferes with a variety of body processes and is toxic to many organs and tissues including the heart, bones, intestines, kidneys, and reproductive and nervous systems . It interferes with the development of the nervous system and is therefore particularly toxic to children, causing potentially permanent learning and behavior disorders . Symptoms include abdominal pain, confusion, headache, anemia, irritability, and in severe cases seizures, coma, and death . </P>

2 types of metal that cause food poisoning