Answers. Relevance. Rating Newest Oldest. Best Answer: a Spanish term that was formerly used in the Spanish Empire to designate people of mixed European (Spaniard) and Amerindian ancestry living in the region of Latin America.[1] The word originated from the Romance language / Latin word Mixticius, meaning mixed.
Industry Group Profile - Lead Exposure. Inorganic lead is a malleable, blue-gray, heavy metal that occurs naturally in the Earthâs crust. Lead was one of the first metals used by humans and consequently, the cause of the first recorded occupational disease (lead colic in a 4th century BC metal worker). In 2012, U.S. production of lead was estimated at 1.6 million metric tons; primarily from secondary refining of scrap metal.
Health effects of arsenic and lead Arsenic and lead are toxic metals and can be harmful to humans, especially children. They pollute the soil in many parts of Washington near former smelters, and old orchards where lead arsenate pesticide was used. They can also be found in products used in our daily lives. Sources of lead include old paint, gasoline, and lead plumbing.