Poison in life: cadmium contaminated rice can cause pain

Release time:

2016-02-19 17:31

生活中的毒:镉污染大米可引发痛痛病
 

Although in recent years, the content of heavy metals in rice has strict control standards, but the problem of rice pollution is still worthy of attention.

[EP Environmental Protection Network Report] Cadmium is a very toxic heavy metal. It is used by humans in many places, such as pigments, batteries, etc., and even atomic reactors have its credit, but generally only those who are familiar with the chemical industry know. But in fact, cadmium toxin is very close to ordinary life. Even smoking a cigarette or eating a mouthful of rice may store cadmium toxin in the body. Today, EP environmental protection network Xiaobian talk about cadmium toxin in life.

Smoke a pack of cigarettes and ingest 2 micrograms of cadmium

Cadmium poisoning is mainly caused by the ingestion of cadmium contaminated water, food and air through the digestive tract and respiratory tract. Among them, tobacco is one of the media that cause human cadmium poisoning. If tobacco is planted on soil contaminated by cadmium, cadmium will be absorbed and enriched from the root system. When tobacco is made into cigarettes, it becomes a "poison source" that threatens the human body ".

Studies have shown that smoking is a major channel for the human body to ingest cadmium. During smoking, nearly half of the cadmium in the smoke will be inhaled by the human body, and eventually about 30% will be absorbed by the human body. This value is 6 times that of the digestive tract. In general, at least about 2 micrograms of cadmium are absorbed into the body per pack of cigarettes smoked.

In addition to smoking, car exhaust also causes the human body to ingest cadmium toxins through respiratory channels, because car exhaust not only contains carbon monoxide, hydrocarbons, etc., but also contains heavy metals including cadmium.

Cadmium Contaminated Rice Causing Pain

If smoking only makes some people easily exposed to cadmium, then the problem of cadmium toxin in rice is even more shocking. After all, rice is the staple food of most people.

As early as 1955 to 1968, people in the Toyama Plain area of Japan experienced a painful period of "pain disease" epidemic. The main reason was that 258 people suffered from rash after drinking cadmium-containing river water and eating cadmium-containing rice. Among them, 207 people died as a result, which became the Japanese "pain disease" incident that shocked the world. The main reason for this problem is that rice, like tobacco, is a crop with strong absorption of cadmium.

Although in recent years, there are strict control standards for the content of heavy metals in rice, the problem of rice pollution is still worthy of attention.

Control pollution to avoid cadmium poisoning

In general, cadmium poisoning is also a chronic poisoning, it is in the human body savings incubation period can be as long as 10 to 30 years. Studies have shown that when cadmium in water exceeds 0.2mg/L, residents who drink for a long time or eat food nourished by such water can cause symptoms such as "bone pain. Cadmium that enters the human body and warm-blooded animals mainly accumulates in the liver, kidney, pancreas, thyroid and bones, causing diseases such as kidney organs, and affecting human normal activities, causing anemia, hypertension, neuralgia, osteoporosis, and nephritis And secretion disorders.

To prevent cadmium poisoning, it does not mean to stop cigarette production or simply remove rice from the staple food, but to cut off the root causes of pollution of tobacco and rice, that is, to control the pollution of industrial cadmium to environmental water, air and soil, to prevent the accumulation of cadmium in animals and plants, and to cut off its food chain into people and fowl. At the same time, control the growth of cars and reduce the content of cadmium in the air. (Sijie)

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