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Lead (/ l ɛ d /) is a chemical element; it has symbol Pb (from Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to ...
The major treatments are removal of the source of lead and the use of medications that bind lead so it can be eliminated from the body, known as chelation therapy. [4] Chelation therapy in children is recommended when blood levels are greater than 40–45 μg/dL. [4] [12] Medications used include dimercaprol, edetate calcium disodium, and ...
The more abundant rare earth elements are similarly concentrated in the crust compared to commonplace industrial metals such as chromium, nickel, copper, zinc, molybdenum, tin, tungsten, or lead. The two least abundant stable rare earth elements (thulium and lutetium) are nearly 200 times more common than gold. However, in contrast to the ...
So, how does lead get into food, and what can you do to limit your exposure? Here's what you need to know. First, here's why there's lead in your food. The metal can get into food in various ways ...
So, if you're growing your own veggies, consider testing your soil or using commercial soil to ensure your produce remains lead-free and safe to eat. U.S. Food & Drug Administration 2.
Metal toxicity or metal poisoning is the toxic effect of certain metals in certain forms and doses on life.Some metals are toxic when they form poisonous soluble compounds. . Certain metals have no biological role, i.e. are not essential minerals, or are toxic when in a certain for
Although lead has been banned from paint since 1978, lead poisoning still occurs. A medical expert explains the signs and symptoms of this public health problem.
[citation needed] Over geological time scales, very few metals can resist natural weathering processes like oxidation, so mainly the less reactive metals such as gold and platinum are found as native metals. The others usually occur as isolated pockets where a natural chemical process reduces a common compound or ore of the metal, leaving the ...