Vanadium drinking water

V2O5 = vanadium pentoxide VOSO4 = vanadyl sulfate (W) = drinking water wk = week(s) x = t1me(s) yr = year(s)... 

No studies were located that specifically studied cancer in humans or animals after oral exposure to vanadium. However, some studies designed to test other end points noted no increase in tumor frequency in rats and mice chronically exposed to 0.5-4.1 mg vanadium/kg as vanadyl sulfate in drinking water (Schroeder and Balassa 1967 Schroeder and Mitchener 1975 Schroeder et al. 

Vanadium in the drinking water of mice had no influence on tumor induction by the known carcinogen 1,2-dimethylhydrazine given by subcutaneous injection (Kingsnorth et al. 1986), but dietary vanadium did decrease mammary tumors in mice caused by 1-methyl-1-nitrosourea administered concurrently (Thompson et al. 1984). The latter effect may have been due to interaction with DNA. 

The vanadium content of normal food and drinking water is in the ppb to ppm region and thus well below any toxic level. Exposure to vanadium, e.g. by inhaling vanadium pentoxide, or from elevated vanadate levels in food and drinking water, does constimte a health risk. Inhaled particulate vanadium can induce oxidative stress and thus damage the... 

N. Teshima, M. Kuno, M. Ueda, H. Ueda, S. Ohno, T. Sakai, Automated stopped-in-dual-loop flow analysis system for catalytic determination of vanadium in drinking water, Talanta 79 (2009) 517. 

Beverages provide humans with 28% of their magnesium intake, 27% of nickel, 24% of copper, 33% of strontium, 40% of uranium, 45% of rubidium, and 58% of vanadium consumption. Drinking water, home-made beverages (tea, coffee) and beer are important suppliers of inorganic body components. 

The concentrations of vanadium in water depend largely on geographical location and may range from about 0.2 to more than 100 fig/L In drinking water supplies in the United States, 91% of sampies analyzed had below 10 fig/L, and the average was 4.3, g/L. However, typical values in drinking water appear to be about 1 /ig/L. 

Deficiency of T. e. can lead to characteristic deficiency symptoms or diseases, thus indicating the essential nature of these nutritional factors, e g. iodine is a component of the thyroid hormones and essential for thyroid function. Iodine deficiency is responsible for endemic goiter, and certain types of cretinism it can be avoided by addition of iodides to drinking water. Other T. e. are chromium, copper, fluoride, magnesium, manganese, nickel, vanadium, silicon, tin, selenium, zinc (see individual entries). 

Later, Chasteen, Lord, and Thompson used EPR to determine the chemical forms of both absorbed vanadium in tissue and excreted vanadium in the urine and feces of rats given VOSO4 in drinking water over long periods. EPR signals were well defined in the stomach, duodenum, liver, spleen, kidney, lung, and elimination products [78],... 

If vanadium is in the air, you can breathe it into your lungs. Most of it leaves your body in the air you breathe out, but some stays in your lungs. The part that isn t breathed out can go through your lungs and get into your bloodstream. You may eat or drink small amounts of vanadium in food and water. Most of this does not enter your bloodstream, but leaves your body in your feces. However, small amounts that you swallow can enter your bloodstream. Most of the vanadium that enters your bloodstream leaves your body quickly in the urine. If you get vanadium on your skin, it is unlikely that it will enter your body by passing through your skin. For more information about how vanadium enters and leaves your body, see Chapter 2. 

The y is also integral constituent of the alchemical symbol for several varieties of wine (vinum), two of which are shown in Figure 6.1 (left). French and Californian red wines in fact can contain up to 90 ptg of vanadium per litre,[ l i.e. about twice the amount present in the Vanadium Water from the Fuji region (Chapter 1, Figure 1.5). Whether or not drinking red wine has any implications as to the creativity of vanadium chemists remains to be disclosed. 

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