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.
Lead is a metal found in the earth, and it is a poison. For years, lead was used in paint, gasoline, plumbing and many other items. Lead can still be found in some products sold today. As these things are used or get worn out, the lead they contain can spread.Lead paint was banned from home use in 1978. If you live in a home built before 1978, or near a busy road, there could be lead in your house dust and soil.ften, lead poisoning is caused by lead you can't even see. Dust from lead paint is still the number one source of childhood lead poisoning. Lead poisoning can cause problems with a child's growth, behavior, and ability to learn. Lead can also harm babies before they're born.