What is Cadmium Rice? How to avoid eating cadmium rice?

Cadmium rice, that is, cadmium this heavy metal content exceeds the national standard of rice, this kind of rice is generally produced by wastewater polluted farmland, resulting in the farmland grown in the rice contains excessive cadmium this element, people eat this rice for a long time will appear bone pain. To avoid eating this kind of cadmium rice, you should pay attention to distinguish whether the rice you want to buy comes from polluted rice fields, and at the same time buy more new rice to eat, do not buy old rice, you can also eat rice and flour food, and try to minimize the excessive intake of cadmium by the human body.

Hazards of cadmium rice Cadmium is a heavy metal that is toxic to the human body, if ingested in large quantities for a long time, it will cause chronic poisoning of the human body, which will cause harm to the bones and kidneys of the human body, and in more serious cases, kidney failure, osteoporosis and osteomalacia will occur. However, cadmium rice looks the same as ordinary rice, the appearance color is very white, the particles are full, and it cannot be distinguished by the naked eye.

To distinguish the rice producing areas to prevent the purchase of this kind of cadmium rice, we must first understand which places are heavy metal polluted areas through information, so as to avoid buying rice from these producing areas, and at the same time try to buy food from regular merchants, and see the origin brand on the packaging bag before making sure that it is not covetous, so as not to fall into the pit.

Eat a varied dietIn addition, our staple foods should be varied and should not be completely dependent on eating rice to get by. You can eat some soup rice noodles and buns in the morning, a meal of dumplings from time to time, or a meal of noodles in two days, so that even if you eat a certain amount of cadmium rice, you can share the risk to a certain extent, and you will not have too much intake of this harmful substance for a long time. At the same time, we can also drink more water or tea, eat more foods with high dietary fiber content and protein content, so as to promote excretion, and harmful substances including cadmium will be eliminated from the body as much as possible.

Cadmium rice is a kind of rice with excessive cadmium content, and if you avoid eating cadmium rice, we can first pay attention to the first place of the rice to see if it comes from cadmium-contaminated areas, and you can change the consumption of multiple brands of rice.

This kind of rice is grown with excessive cadmium content in the soil, try to buy big brands of rice, don't be greedy for small cheap, don't use mining and smelting, and rice produced in relatively dense areas.

It can only be thrown away, and there is no way to deal with it at the moment.

The properties of cadmium make the soil susceptible to widespread contamination and, once polluted, easily enter the rice. Therefore, it is necessary to strengthen source control, including the control of air pollution and industrial wastewater discharge, the use of phosphorus fertilizers with low cadmium content, and the reasonable and appropriate use of livestock and poultry manure, etc., to reduce or even eliminate the pollution of exogenous cadmium to the soil of paddy fields, which is the key to eliminating cadmium caused by exogenous pollution.

Soil acidification is a major cause of excessive cadmium levels in rice. China's population is more and less land, the soil multiple cropping index is high, and the amount of fertilizer is large, resulting in soil acidification, coupled with acid rain from the atmosphere, and acidic mineral water in sulfur-containing mining areas, resulting in serious soil acidity phenomena in the soil, especially in the acid rain area and around the sulfur-containing mining area. Therefore, improving the soil through alkaline substances such as lime is an important measure to eliminate cadmium rice, of course, the amount of lime needs to be scientifically calculated, and the adjustment of soil pH must reach the above.

Water management in paddy fields is another important measure to control cadmium in rice. Ideally, flooding helps to minimize cadmium in the rice. However, the whole process of flooding is unrealistic in field production, one is the high water consumption, and the usual rice growth management needs medium dry drainage to control rice tillering and change the soil environment, and release nutrients through the process of medium dry drainage.

In Japan, the cadmium content of rice can be greatly reduced by maintaining a water layer of 2 3 cm in the field three weeks before and after heading, so as to prevent the soil surface from being in an oxidized state. For paddy fields with soft soil, such water management will bring difficulties to mechanical tillage, and the water layer of rice maintained at 2 3 cm for 10 days after heading can also receive a better cadmium reduction effect.

The excessive cadmium level in rice is largely due to heavy metal cadmium contamination in the soil or water source, and soil remediation is required to reduce the absorption of heavy metal cadmium by spraying foliar inhibitors on crops.

1.Cadmium harm to crops: excessive cadmium heavy metals in soil will bring direct harm to crops and lead to the death of plants; Excessive heavy metal content in soil sometimes affects the absorption of nitrogen, phosphorus and potassium nutrients by crops, inhibits crop growth, and leads to a decline in the yield of agricultural products. In addition, soil heavy metal cadmium pollution can increase the content of heavy metals in crops, leading to pollution of agricultural products and threatening the quality and safety of agricultural products.

2.Hazards of cadmium to human health: Pollutants such as cadmium, heavy metals in soil, will eventually harm human health through various food chains and through gradual bioaccumulation, and can also indirectly pose a threat to human health by affecting the quality of water bodies and atmospheric environment.

Foshan Tieren Environmental Protection Technology Co., Ltd. is a national high-tech enterprise, a national intellectual property advantage enterprise, committed to the cause of human health, focusing on soil (farmland, sites, mines) heavy metal pollution control, and providing system solutions, the whole process of chain environmental consulting and engineering implementation services, the company has participated in the remediation of farmland heavy metal pollution area of 1.8 million mu (of which, the comprehensive contracting repair of heavy metal polluted farmland area of about 80,000 acres) in Hunan, Guangdong, Guangxi and other places have carried out nearly 90 site soil investigation and remediation projects, and have accumulated rich experience in project development.

Cadmium rice generally refers to rice with excessive cadmium content. Cadmium is usually discharged into the environment through wastewater and then into food through irrigation, and rice is a typical "victim crop". Cadmium rice is mainly produced in Hunan and Hubei.

The WHO's safety standards for cadmium are based on toxicity to the kidneys, with a ceiling of 7 micrograms per kilogram of body weight per week.

Cadmium is a heavy metal element, which is very important in metallurgy, plastics, electronics and other industries, but it can be harmful to the human body. The bigger trouble with cadmium poisoning is its long-term nature. Even if the consumption of high-cadmium rice is stopped, the symptoms of kidney failure persist.

Depending on the amount of cadmium ingested, cadmium has different health effects. If it is ingested through food such as rice, it is considered a "long-term small dose". The damage caused by this condition is mainly kidney and bone.

Cadmium rice is formed when rice is irrigated with cadmium-containing wastewater, in which cadmium exceeds the standard.

Long-term consumption of foods containing cadmium can cause pain (i.e. bone pain). The symptoms are pain in the joints of the waist, hands, and feet. After the disease lasts for several years, neuralgia, bone pain, difficulty in moving, and even breathing will bring unbearable pain to all parts of the body.

In the later stages of the disease, the patient's bones are softened and atrophied, the limbs are bent, the spine is deformed, the bones are brittle, and even coughing can cause fractures. The patient is unable to eat and is in great pain.

Scope of cadmium rice pollution: Heavy metal pollution in rice in China is mainly indica rice in southern China, especially in Hunan, Jiangxi and other provinces, where heavy metal pollution is more likely to account for about 10%. Among them, cadmium pollution and arsenic pollution accounted for the largest proportion, accounting for about 40 percent of the polluted cultivated land, respectively.

China's heavy metal pollution is only sporadic in the north, but it is more dense in the south, and in some parts of Hunan, Jiangxi, Yunnan, Guangxi and other provinces and regions, there are some contiguous distributions. If Chen Tongbin's estimate is true, based on China's 1.8 billion mu of cultivated land, nearly 100 million mu of land polluted by cadmium and arsenic, and cadmium alone may reach about 80 million mu. Most of these contaminated areas are still growing rice, and farmers mainly eat their own rice, and rice contaminated with heavy metals is still hidden in the market.

1.The rice is irrigated with waste state water containing cadmium, which exceeds the cadmium standard to form cadmium rice.

2.Long-term consumption of foods containing cadmium can cause painful diseases.

3.The symptoms of the disease are pain in the joints of the waist, hands, and feet.

4.After a few years of illness, the patient will develop neuralgia and bone pain in all parts of the body, and it will be difficult to move, and even breathing will bring unbearable pain.

5.In the later stages of the disease, the patient's bones are softened and atrophied, the limbs are bent, the spine is deformed, the bones are brittle, and even coughing can cause fractures.

How to identify this cadmium rice, to distinguish cadmium rice to look at two touches and three smells:

1. Look at the color of the rice: Be vigilant against excessively bright rice, because unscrupulous merchants should use a bright appearance to cover up the poor quality of cadmium rice. Normal rice should be blue-white; Yellowish in color, broken rice, and cracked rice grains are mostly inferior rice.

Touch the rice with your hands: normal rice is cold and hard to the touch, and then there will be white powder on your hands; Cadmium is big and the rice feels greasy to the touch, and there is no white powder on the hands.

Smell the natural aroma of rice: take a hot breath of rice, or put the rice in your hand to heat it or rub it to heat it, and then smell the rice. High-quality rice will have a fresh fragrance and no peculiar smell; Cadmium rice has a faint smell of stinky oil or musty.

The most intuitive way: put a little rice in the water, and the oil bleaching is cadmium rice.