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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
It can be difficult to identify and avoid the allergen, because many metals are common in the environment, and some are biologically necessary to humans. Regulations have successfully reduced the rates of some metal allergies in Europe, but are not widespread. The social and economic costs of metal allergies are high.
Titanium is a chemical element; it has symbol Ti and atomic number 22. Found in nature only as an oxide, it can be reduced to produce a lustrous transition metal with a silver color, low density, and high strength, resistant to corrosion in sea water, aqua regia, and chlorine.
Titanium that was distributed with fake documentation has been found in commercial Boeing and Airbus jets. Now the Federal Aviation Administration, the aircraft manufacturers and supplier Spirit ...
Titanium and its alloys can heat from the radiofrequency field, as well as the switched gradient field (due to Faraday's law of magnetic induction). Implants with metallic or electrically conductive parts may interact with the switched gradient and/or RF fields used in MRI, causing trauma or burns.
Niobium can be heat treated to obtain a permanently dim black surface. A Septum retainer in black niobium is practically invisible. The selection of niobium jewelry is much smaller than that of titanium and other common metals, mainly because niobium jewelry is more expensive and more difficult to produce.
The same goes for vitamin B12 and ferritin (a form of iron) which women may not get enough of via food, particularly those following plant-based or vegetarian diets.
Former footballer Joey Barton's social media tirade against women working in the men's game is "not acceptable", says sports minister Stuart Andrew.