What are the hazards of heavy metal contamination of food?

Cadmium contamination in heavy metals has a serious impact on the human body. Food is the most important way for the body to absorb cadmium. Cadmium that enters the human body mainly accumulates in the kidneys and liver, damaging the kidneys, bones and digestive system, especially the renal tubules, causing proteinuria and diabetes.

In addition, cadmium can also cause osteoporosis, deformity, joint pain, etc. In 1968, a "painful disease" occurred in Toyama Prefecture, Japan, which was caused by eating rice contaminated with cadmium.

Cadmium is a trace element that occurs naturally in the soil, usually in the form of minerals. Cadmium is widely used, and it is not only found in metal coatings and batteries, but also in cigarettes and ordinary food. Because cadmium is a natural element, even wild animals and plants contain cadmium to some extent.

According to EPA guidelines, if people are exposed to less than cadmium on average, there will be no adverse effects in a person's lifetime, and absorption of low concentrations of cadmium will not have an impact on the human body. How to detect the cadmium content in rice and determine whether it exceeds the standard? Jiapu Technology Grain Heavy Metal Detector XR700 adopts high-precision fluorescence technology, which has extraordinary performance in the detection of grain heavy metal pollution, and the lower limit of cadmium detection in rice can be as low as that, far lower than that of wheat and rice in national regulations.

Food security has always been a concern for each of us, because we need to eat every day, soil pollution, environmental pollution, resulting in excessive heavy metals in food now, calling on everyone to protect the environment.

Heavy metal contaminants in <> food include lead, arsenic, chromium, cadmium, mercury, cobalt, manganese, etc.

1. Lead is one of the most toxic heavy metal pollutants, which can directly harm human brain cells;

2. Arsenic is carcinogenic, and long-term exposure can easily lead to chronic poisoning;

3. Chromium is easy to cause diarrhea, tuberculosis, bronchitis and dermatitis;

4. Cadmium is mainly accumulated in the kidneys, which can easily lead to functional changes in the urinary system;

5. Mercury is a highly toxic substance, which is extremely damaging to nerves and vision;

6. Cobalt can cause radioactive damage to **;

7. When manganese is excessive, it causes hyperthyroidism and harms the vital organs of the human body.

With the development of modern industry, heavy metal pollution has become one of the environmental problems that people are very concerned about. Heavy metals are an element that is ubiquitous in the natural environment, but they can also be discharged into soil and water by human activities, contaminating food. Food is a necessity in people's lives, and the possibility of heavy metals in food cannot be ruled out.

The harm of heavy metals to the human body is very serious and will also affect people's health.

First of all, heavy metal pollution can cause damage to the nervous system in humans. For example, lead is a heavy metal element, and long-term exposure to lead can cause damage to the human nervous system. The World Health Organization generally believes that the safe concentration of lead in a child's blood should be less than 100 micrograms.

However, the harm of lead to the human body lies in the fact that even very low concentrations can damage children's mental development. Heavy metals such as chromium and cadmium can also have a negative impact on the nervous system. Cadmium is similar to lead but more toxic and can cause severe liver and kidney damage.

Secondly, heavy metal pollution can also have a negative impact on the human reproductive system. This effect may include threats to a person's sexual maturity and reproductive abilities. For example, long-term exposure to lead in women can have an impact on the reproductive system, especially reducing fertility.

Finally, heavy metal contamination may also affect a person's immune system. This effect can threaten the health of the person's immune system, forming diseases that cannot be combated. In addition, the long-term accumulation of heavy metals in food may lead to food poisoning.

In summary, the presence of heavy metal contamination in food has a negative impact on human health. People should pay attention to protecting the environment, mitigating contamination of food, and mitigating the negative impact on the human body and ecosystem.

Heavy metal contaminants in food include lead, arsenic, chromium, cadmium, mercury, cobalt, manganese, etc.

1. Lead is one of the most toxic heavy metal pollutants, which can directly harm human brain cells;

2. Arsenic is carcinogenic, and long-term exposure can easily lead to chronic poisoning;

3. Chromium is easy to cause diarrhea, tuberculosis, bronchitis and dermatitis;

4. Cadmium is mainly accumulated in the kidneys, which can easily lead to changes in the residual energy of the urinary system;

5. Mercury is a highly toxic substance, which is extremely damaging to nerves and vision;

6. Cobalt can cause radioactive damage to **;

7. When manganese is excessive, it causes hyperthyroidism and harms the vital organs of the human body.

The 9 most common hazards to the human body in heavy metal pollution:

Mercury: It sinks directly into the liver after ingestion, and is extremely damaging to the brain, nerves, and vision. Natural water contains milligrams per liter of water, which can cause poisoning in people.

Cadmium: causes high blood pressure, causes cardiovascular and cerebrovascular diseases; Destroys bones, liver and kidneys, and causes kidney failure.

Lead: It is one of the more toxic heavy metal pollution, once it enters the human body, it will be difficult to eliminate, and it will directly harm human brain cells, especially the nervous system of the fetus, which can cause congenital mental retardation.

Cobalt: Radioactive damage to **.

Vanadium: hurts people's hearts and lungs, and causes abnormal cholesterol metabolism.

Antimony: and arsenic can make silver hand ornaments brick red, and have radioactive damage to **.

Thallium: can cause polyneuritis in people.

Manganese: When excessive, it can cause hyperthyroidism and damage vital organs.

Arsenic: It is one of the components of arsenic, which is highly toxic and can cause rapid death. Long-term exposure to small amounts can lead to chronic poisoning. In addition, there is carcinogenicity.

Each of the above 9 heavy metals can cause headaches, dizziness, insomnia, forgetfulness, joint pain, stones, cancer, blackfoot disease and other reactions, and the most common is that it can destroy the human digestive system and urinary system.

Why has heavy metal pollution become more and more serious in recent years? Heavy metal pollution is serious, caused by human factors such as mining, exhaust gas emissions, sewage irrigation, and the use of products with excessive heavy metals. For example, the lead emitted by automobile exhaust enters the environment through atmospheric diffusion and other processes, resulting in a significant increase in the concentration of lead on the surface at present, resulting in an increase of about 100 times of lead absorption in modern humans compared with primitive humans, which damages human health.

How to reduce the harm of heavy metals to the human body?

In fact, to reduce heavy metal pollution, the most important thing is to improve external environmental pollution, and the internal detoxification ability of the human body can also be appropriately strengthened, which can be solved by supplementing the trace element selenium.

Elemental selenium has a well-known function, which is to detoxify and relieve the damage of various heavy metals to the human body.

When the human body is exposed to heavy metals, free radicals and peroxides are produced in the body, which promote cell death and cause abnormal human body function. The main "nemesis" of free radicals and peroxides is glutathione peroxidase, which is only active when selenium-rich, which can remove heavy metal pollution from the body and protect the biofilm from damage.

In addition, selenium, as a negatively charged non-metal ion, has a strong affinity with metals, and can combine with heavy metals harmful to the human body, such as mercury, methylmercury, cadmium and lead, to form metal, selenium and protein complexes, thus playing a role in detoxification and detoxification.

Therefore, people in some heavily polluted areas, or big cities, may wish to add more selenium supplements to enhance the body's detoxification ability and disease resistance. Selenium supplementation is generally a combination of food and medicine, daily eating more asparagus, mushrooms, purple potatoes, seafood and other foods containing more selenium, and oral selenium supplements such as selenium Weikang chewable tablets, the detoxification effect is more guaranteed.