Aluminum from scrap: Dangerous

Although only a small amount, aluminum also has the ability to poison . According to Prof. Dr. Le Huy Ba, Director of the Institute of Science, Technology and Environmental Management - Ho Chi Minh City University of Technology.

According to Prof. Dr. Le Huy Ba, Director of the Institute of Environmental Science and Technology - Ho Chi Minh City University of Technology, in life, he often encountered aluminum utensils mixed with impurities. The best aluminum is available only in the laboratory or in special storage areas.

Can be toxic at very low levels

"Even if only a small amount of aluminum is toxic," explains Prof. Dr. Le Huy Ba.(Photo: H.Cat)

Aluminum is a soft, light metal with translucent metallic silver, because there is a thin layer of oxidation (Al ₂ O ₃ ) which forms very quickly when aluminum is exposed to air. The oxidation layer that protects the inner aluminum does not continue to oxidize, so it is safe for users.

"But when there is an impact of metal corrosion due to excessive acid or alkaline environment because aluminum is a bimetallic metal, Al ₂ O ₃ is degraded. Aluminum 3+ ion is very toxic, enters the blood into the body and impact on the real nervous system, " Dr. Ba said.

The nature of aluminum is not an essential element for the organism. While cadmium, copper, nickel, cobalt . are toxic, the body needs very small amounts of these metals. Therefore, these metals have a minimum threshold to be toxic.

"Because aluminum is not necessary for the body during the construction of cells or functional organs, it means that aluminum is" so easy "because it is not a body's need. Aluminum is also potentially toxic, " explained Dr. Ba.

However, Decision 867 / QD - BYT issued on April 4, 1998 on Food Hygiene Standards for food, heavy metal limit checklist in tools for storing, preserving and cooking only specifies the content of 8 heavy metals. Including: Arsenic (As), Lead (Pb), Copper (Cu), Tin (Sn), Zinc (Zn), Mercury (Hg), Cadimi (Cd), Antimony (Sb).

So far, there has been no research on the harmful effects of aluminum on human bodies. As for rice, TS. Le Huy Ba said that an amount of 135ppm of aluminum began to cause death to rice.

The environment is too sour, aluminum toxicity is higher

Meanwhile, according to documents posted on the website of Ho Chi Minh City Pasteur Institute, scientists warn, using aluminum to contain hot and sour food (pickled salt, sour soup), aluminum surface easy to pore , release aluminum ions into the body, accumulate in brain cells, causing early ' confusion ' syndrome.

Normally, aluminum items such as pots and pans are safe. But during the cooking process, we still can't keep it. In an overly acidic environment, too salty or too alkaline, these are redox reactions, releasing aluminum ions. Aluminum ions come into food.

Aluminum pots have black dots, proving that aluminum oxide has been destroyed, and it is easy to poison people when used for cooking.(Photo: H.Cat)

Normally, neurons do not have aluminum ions. But if there is aluminum ion contamination in the food, aluminum ions have affinity for nerve cells, accumulate there and cause brain neurons to be denatured, leading to ' confusion ', (silly). silly). Manifestations are reduced memory, stagnant reactions, decreased intellect, slow movements, abnormal crying and laughing.

"Even aluminum ions can replace other types of homogeneous ions, ie the radius of the same ions, causing the protein activity of the body's enzymes to fail and causing variations," TS Warning.

Dr. Le Huy Ba said that his team used to do aluminum research in alum water. Alum water is often acrid and oily. Aluminum is then in the form of Al (OH) ₃ or aluminum sulfate - Al ₂ (SO ₄ ) ₃ . Alum water penetrates directly through the skin, through the gastrointestinal tract. Eating too much can numb the tongue. People living in alum water areas are often stunted and weak.

According to experts, with a high dose, aluminum can cause poisoning leading to coma, but the amount of aluminum in household items such as saucepans is not enough at that level. But aluminum causes confusion because of the accumulation, and because many people ignore pathological manifestations like anorexia, fatigue, discomfort, dizzying minds.

Therefore, as a precaution, consumers do not use aluminum to store food overnight or use aluminum to pickle salt, beat eggs, make sour salad, sour soup, salty, hot salt . One of the ways helping consumers avoid poor quality aluminum is the coating of aluminum oxide must be homogeneous, light reflective good, evenly knocked.

Aluminum from scrap: Dangerous

Families often use cooking tools, containing aluminum food.Aluminum is light, clean and convenient.But if you use aluminum items made from aluminum scrap, processing does not guarantee technology, processing impurities, not creating an inert environment, then when cooking, easy to contain food create an opportunity to stop contamination of aluminum ions into food, causing health effects for people who eat right.Especially when cooking salty, it is easy to create aluminum salt which is toxic to the body.

Using aluminum to contain hot and sour food (pickled salt, sour soup), salty, easy to pore aluminum surface, release aluminum ions into the body, accumulate in brain cells, causing the syndrome to be "hot" and 'soon..

Normally, neurons do not have aluminum ions.But if there is aluminum ion contamination in the food, aluminum ions have affinity for nerve cells, accumulate there and cause brain neurons to be denatured, leading to 'confusion', (silly silly).Manifestations are reduced memory, stagnant reactions, decreased intellect, slow movements, abnormal crying and laughing.

Prevent:

- Do not use aluminum for overnight food.
- Do not use aluminum to salt pickle, whisk eggs, make sour salad, sour soup, salty and hot salt .
- Do not use machined aluminum without technology.Limit the use of aluminum for processing and storing food.

(According to Ho Chi Minh City Pasteur Institute)

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