Post
by Андрей Патрушев » Mon Jan 26, 2015 13:53
Aluminium (from different directories)
According to A. Leninger aluminium belongs to the vital elements found in trace amounts.
Aluminium enters into the composition of tissues of animals and plants; in the bodies of mammals discovered from 10-3 to 10-5% of Aluminium (raw material).
The main sources of exposure - food, water, air, medicines, aluminium utensils (after heat treatment in a pot the aluminum content in food doubles), deodorant, etc. Daily requirement in aluminum adult 35-49 mg. Total content of aluminium in the daily mixed diet is about 80 mg.
In plant foods the Aluminum content ranges from 4 mg per 1 kg of dry matter (potatoes) to 46 mg (yellow turnip), in foods of animal origin is from 4 mg (med) to 72 mg per 1 kg of dry matter (beef). In the daily human diet, the content of Aluminum up to 35-40 mg. of Known organisms - hubs Aluminum, for example, moss (Lycopodiaceae), containing ash up to 5.3% of Aluminum, molluscs (Helix and Lithorina), in which the ash of 0.2-0.8% Aluminum. Forming insoluble compounds with phosphates, Aluminum disturbs the nutrition of plants (absorption of phosphate by roots) and animals (absorption of phosphates in the intestine).
Being one of the most abundant elements in the earth's crust contains aluminium in almost any natural water. Aluminium gets into natural water by natural means in case of partial dissolution of clays and aluminosilicates, and also as a result of emissions of individual plants (electrical, aeronautical, chemical and petrochemical industry, mechanical engineering, construction, optics, missile and nuclear engineering) from atmospheric deposition or wastewater. aluminium Salts are also widely used as coagulants in water treatment processes for municipal needs. The content of aluminum in surface waters ranges from a few to hundreds of mg/dm3 and depends heavily on the degree of soil acidification. In some acidic waters its concentration may reach several grams per dm3.
MPC of aluminium is set at 0.5 mg/l, the limiting sign of harmfulness - sanitary-Toxicological, class of danger - 2. Who-recommended concentration of aluminium of 0.2 mg/l provides a compromise between the practical use of aluminium salts in water treatment and discoloration of water in the distribution network.
According to the classification of P. Aggett, aluminum is one of the most important essential elements (the same for all mammals).
For nutrient classification aluminium applies to abiotic elements. Abiogenic elements took their place in the metabolism of animals due to the weak reactivity, despite the prevalence of the lithosphere.
The metabolism of aluminium in humans is unclear, but it is known that inorganic aluminum is poorly absorbed and most of it is excreted in the urine. Aluminium has a low toxicity to laboratory animals. However, some studies show that the toxicity of aluminium is manifested in the influence on metabolism, especially mineral in nervous system function, the ability to act directly on cells, their proliferation and growth. An excess of aluminum salts reduces the delay of calcium in the body, reduces the adsorption of phosphorus at the same time 10-20 times increases the content of aluminum in the bones, liver, testes, brain and parathyroid gland. The most important clinical manifestations of neurotoxic action include violation of motor activity, convulsions, decrease or memory loss, psychotic reactions. Some studies have found aluminium associated with the brain lesions characteristic of Alzheimer's disease (in the hair of patients have elevated levels of aluminum). However, currently available from the world Health Organization epidemiological and physiological data do not support the hypothesis of a causal role of aluminium in development of Alzheimer's disease. So who sets the concentration values of aluminum for medical reasons, but at the same time, the presence in drinking water to 0.2 mg/l aluminum provides a compromise between the practical use of aluminum salts as coagulants and organoleptic characteristics of drinking water.
Environment: Encyclopedic dictionary. M.:Progress, 1993
Vernadsky V. I. the Chemical structure of earth biosphere and its environment. – M.: Nauka, 1987. – 340 p.
Harmful substances in industry. A Handbook for chemists, engineers and doctors. Ed., 7th, TRANS. and EXT. in three volumes. Volume I. Organic matter. - 590 p., II. Organic matter.- 623 S., III. Inorganic and Organoelement compounds, ed. honored. deyat. science prof.In. Lazarev and the doctor. med. Sciences E. N. Levina. - L.: Chemistry, 1976.
Bespamyatnov G. P., Krotov Y. A. Maximum permissible concentrations of chemical substances in the environment. Reference. - L.: Chemistry, 1985. - 528 S.<
). Platinum salts are extremely toxic (unlike aluminum) and platinum, as well as arsenic tends to accumulate in the body... 
it has long been "ignored" for all the corrupt filters and buy drinking water, purified by reverse osmosis (3х19л=450rub - enough for 5 people for a week), and the water from Bsla use as a medical (it is a pity that a negative ORP very long lasting).
(even somewhere on the network my article with drawings still hangs 
In the presence of chlororganics, by providing active oxygen at the electrode should be its oxidation with the formation, with high probability, it is extremely dangerous to human health dioxins (remember the crimes of USA in Vietnam). On the other hand, when the allocation of active hydrogen, it should be a restoration, but that will be thus destroyed all the molecules of dioxins - also the process is probabilistic (this is a persistent connection)... sucks that the regular intake of dioxins can accumulate in the liver (argue that they are even in the liver of penguins were found after the Americans jungle oranges processed). The good news is that dioxins are even larger molecules and still have a better absorb on aluminum hydroxide than simple hlororganika (also, incidentally, extremely useful compounds for the body). In the spring, during the breeding seaweed in the water, organic matter may be too much. In addition, these same weed "plumbers" poison hlororganika... So in spring I personally use Blom avoid... 
