Home > categories > Minerals & Metallurgy > Aluminum Wire > A year ago by a ten cm long metal wire, does much harm to the people?
Question:

A year ago by a ten cm long metal wire, does much harm to the people?

A year ago by a ten cm long metal wire, does much harm to the people?

Answer:

Aluminum decomposes easily! Aluminum (A1) is one of the most abundant metals on earth. It is widely distributed. In nature, most of them exist in the form of complex aluminum salts, which account for about 8% of the total crust, second only to oxygen and silicon, and occupy the third place. It is not surprising, therefore, that aluminum is commonly found in drinking water sources due to physical geography. Rock erosion, soil leakage, dust deposition and rainfall, industrial wastewater is an important way for aluminum to enter the water body. The content of aluminium in different water bodies is different. Acidic water contains more aluminum (acid rain, industrial wastewater). Drinking water in the process, the commonly used aluminum salt coagulant, the content of aluminum salt treated aluminum in water is higher than that of untreated water, the content of aluminum in drinking water is usually very low, no more than a maximum of 0.2mg/L (refer to: water, water treatment process are in line with the standard of drinking water), if 2 litres per person per day, the uptake of aluminum from drinking water for 0.4mg/ days, and adult daily food intake from the aluminum content is about 5mg-20mg, a small part of it from the water intake of aluminum for human intake of aluminum content, and when the content of public concern caused by Alzheimer disease and drinking water aluminum, it will make people feel surprised.
Alzheimer's disease is usually impaired in the human brain, including progressive mental deterioration, loss of memory and rational thinking, and Alzheimer's disease, which eventually leads to death after a gradual deterioration of the condition. In the United States, it is reported that about 65 people over the age of 5-10% suffer from the disease. Alzheimer's disease has aroused great public concern, and the patient's family has been suffering from this emotional disorder, which has brought a huge burden on the economy.If to Alzheimer's disease who do medical examination will be found in the brain cortex and hippocampal regions have plaque and tangles phenomenon, the plaque and tangles of nerve fibers is responsible for knowledge and rational thinking of the nerve cell degeneration. The idea that plaque is related to aluminum was first proposed in 1960s. At the time, the researchers injected small amounts of aluminum salt into the laboratory animals and found that the brains of the animals produced similar plaque damage. The findings contribute to the pathological study of brain death in Alzheimer's disease. And it was found that aluminum levels in brain tissue die of Alzheimer's disease are higher than those in other neurological diseases.
Aluminum is not a basic component of the human body. In recent years, due to advances in epidemiological studies, aluminum has been shown to be potentially harmful to the nervous system of the human body. In 1998 the United States Environmental Protection Agency (EPA) will be included in the list of aluminum contaminants in drinking water, and made the following statement: it is very necessary to do more research on the risk properties of aluminum pollution in drinking water, because the aluminum are widely distributed, recent studies have found that it is related to Alzheimer's disease, the potential impact of the nervous system the United States Environmental Protection Agency, argues for the necessity for further investigation, and the potential long-term neurological toxicity of aluminum to set an appropriate not observed adverse reaction concentration. Based on this, the United States Environmental Protection Agency (EPA) announced the standard value of aluminum in drinking water 0.02-0.2mg/L, WHO in its newly revised "drinking water quality standards" set the standard value of aluminum 0.2mg/L. The published aluminum target value is 0.2mg/L/ and stressed that if there is more than the standard of the Member States must confirm whether exceed the standard will bring the risk to human health, it is necessary to protect human health of the water to take remedial measures to restore water quality. There is no aluminum index in the standard of living and drinking water issued in 1985. In 2006, the new standard of hygiene for drinking water increased the allowable concentration of aluminum to 0.2mg/L.

Share to: