Once aluminum salt enters the human body, it is first deposited in the brain, which may lead to brain damage and severe memory loss, which is a unique symptom of Alzheimer's disease. The researchers involved in this work said that experiments on mice showed that the aluminum content in their brains reached a measurable level only after they were given a glass of water treated with aluminum salt. The study of mice found that the trace aluminum mixed in drinking water entered the brain of mice and gradually accumulated there. Researchers' research on dementia patients found that the aluminum concentration in 30% neocortex area of the brain of such patients was above 4 μ g/g (dry weight), and the aluminum content in neuron nuclei of patients' brains was four times that of healthy people, and the highest aluminum content could reach 30 times. Researchers believe that if aluminum gradually accumulates in the brain over time, it will kill neurons and make people lose their memory. A scientist said: We have been drinking water purified by aluminum salt and eating food containing aluminum salt all our lives, so when we are very old, we have accumulated a lot of aluminum in our bodies. He pointed out that in the past 70 years, the incidence of Alzheimer's disease has generally increased around the world. He said that aluminum is also used as food emulsifier.
Aluminum can directly damage the activity of osteoblasts, thus inhibiting the matrix synthesis of bone. At the same time, the absorption of aluminum by the digestive system leads to an increase in urinary calcium excretion and insufficient calcium content in human body. Aluminum accumulates in the human body and plays a physiological role, which can also lead to encephalopathy, osteopathy, nephropathy and non-iron deficiency anemia.
There are three main ways to prevent the harm of aluminum: first, it is suggested that urban water supply companies should not use aluminum salts [such as potassium aluminum sulfate (KAI(SO4)2)] as water purification agents in line with the purpose of being responsible for themselves and the people; Second, try not to use aluminum products as cooking utensils; Third, eat less food containing more aluminum salt additives (such as fried dough sticks).
Aluminum is very toxic to human body and also to living things. Soluble aluminum compounds are toxic to most plants, and the dissolved aluminum compounds in the water of acidic soil make it difficult for ordinary crops to grow normally. Usually, when the dissolved aluminum reaches more than 10-20PPM, plants will show signs of aluminum poisoning. Aluminum in soil can combine with soluble phosphate to form insoluble aluminum phosphate, which leads to plant death due to phosphorus deficiency. Aluminum can also dehydrate plant cell protoplasm, and then destroy it and die. Aluminum combines with pectin in the cell wall, which strengthens the cross-linking structure of pectin and prevents plants from absorbing water and nutrients. Aluminum is also closely related to mineral nutrition such as calcium and phosphorus in plants. It can inhibit the absorption and accumulation of calcium and phosphorus by ordinary plants, and also affect their absorption and accumulation of potassium, magnesium, iron, manganese, copper and zinc. Aluminum is also toxic to aquatic animals. When the pH value is about 5, it is deposited in the gill of fish in the form of aluminum hydroxide, which makes it difficult for oxygen to enter the blood, which makes the salt concentration in fish out of balance and leads to fish death. The toxic concentration of aluminum to aquatic animals is generally above 70 μ g/L. The increase of aluminum content in water will lead to the coagulation of a large number of organic substances, which will lead to the death of aquatic animals due to lack of nutrition. Aluminum will precipitate phosphorus, which seriously threatens the reproduction of aquatic animals.