The nuclear pollution of sea water will jeopardize the food chain

The nuclear pollution of sea water will jeopardize the food chain
Researcher of Chinese Academy of Agricultural Sciences Zhang DeChun
There is a famous film " Godzilla " in Japan, that was spoken is that marine organism is influenced by the radiation of nuclear test, make a variation after producing dna, has produced the story of the enormous bizarre entity's Godzilla finally. Up till now, the electric company of the east of Japan has already drained into 11,500 tons and included low sewage which radiate the material in the ocean. The pollution of the ocean of Japan's nuclear leakage really exists, though perform the worry of the realistic edition " Godzilla " and does not know much about becoming reality, but the expert reminds - -
If 3 11 heavy earthquakes of Japan and tsunami are the natural disaster, and therefore the nuclear incident of leakage of electric company of the east of Japan initiated is that the natural disaster add the man-made calamity, have brought the serious nuclear pollution to the earth environment. It is reported, the sea water near the first intake of aircrew of nuclear power station No. two of Fukushima takes a sample on April 4, iodine - density 131 goes beyond 5 million times of Japan's national standard, cesium - density 137 exceeds standard 1,100,000 times. It is last sea not to if you can't discharge being low Japan, radiate by material,perhaps will because last Godzilla such bizarre entity radiation, but will cause serious pollution to the ocean.
The impact on food chain will not appear recently
Iodine - 131 is a kind of radiosiotope of the iodine of element, its chemical property is the same as iodine of element. But because there are 78 neutrons in its atomic nucleus, and there are only 74 neutrons in the stability and nuclide atomic nucleus of the iodine, iodine - 131 can launch �� ray ' 99%) With �� ray ' 1%) ,Effective half in human body it makes a reduction of one to be 7.6 days. �� ray can wound some thyroid gland cells, makes the thyroid gland shrink, lead to the fact that is reduced by synthetic thyroid gland hormone of thyroid gland, make first overbearing and behave and disappear.
Natural cesium that exists is a kind of stable isotope, cesium - 137 is the radiosiotope, will release �� ray; There are nearly 30 years in it half-life. If take in cesium - 137 through eating or breathing, or is shone by cesium - 137 subsiding on the ground, will all have more lastingly influence on health. Cesium - 137 will gather to enter the human body in the muscular tissue, and may increase the risk of suffering from cancer.
The low sewage which will radiate the material will be drained into the sea, it is certain to cause the pollution of the sea water. Japan has already detected radioactive cesium in fish's young fish's body of jade muscle caught in north surrounding waters of thatch city, reach 526 Beckler per kilogram, exceed Japan's food hygiene law and radiate 500 Beckler per kilogram that the tentative standard value of things presumed. In addition, still detect radioactive iodine of 1700 Beckler per kilogram in this kind of small fish's body. Thatch the intersection of city and the intersection of county and the intersection of fishery and association require the whole county fisherman catch and then the intersection of jade and the intersection of muscle and fish already.
According to Japan's official report, even if the adult eats and receives the fish, shellfish and alga in the sea area of this pollution every day, also only equivalent to the radiation that is wished by 0.6 fine long hair every year, 1/4 wished in the nature by 2.4 fine long hair of radiation quantity every year only for the human body, therefore " will not produce radiation to pollute the neighbouring country immediately " . Japan's official speech is very rigorous, only show " will not produce radiation to pollute immediately " ,How coming? There is no authoritative answer at present. But analyze from the scientific principle, will produce radiation to pollute in the future, will endanger the security of the food chain, and then will influence the human health and safety.
The mankind will be a victim with terminal food chain
Cut after the intersection of nuclear power station and accident, Pele of promise, happen 1986, the intersection of university and wheat, expert of radiology, New Mexico of U.S.A., rein in doctor, lead one international panel of expert specially, carry on research to the consequence that human health produces on the nuclear accident. He thinks, should not only concentrate sight on radiating on the material, it is food chain that really need paying close attention to. On long terms, the nuclear sewage will endanger the food chain of the marine organism, the ones that will be damaged are mollusks such as jellyfish, sea anemone, sea worm,etc. and the plant floats to move about most quickly, their speed of absorbing radioactive material exceeds shell animal. And then the fish, the plant mainly floats to move about in the food of the fish. The radioactive pollution near Fukushima nuclear power station has already caused the injury to the existence of the local marine animal, ovum and the young of the marine animal has higher sensitivity to radiation, therefore measure to radioactive cesium in fish's young fish of jade muscle at first. The large-scale marine animal takes in and receives plant and small-scale prey of radiation, the marine food chain will be polluted. The whole food chain is all linked with one another, but the mankind is in high side the most of the food chain. If does not control effectively, it is the mankind that is endangered finally.
Chinese Government has paid great attention to Japan's nuclear contamination accident, pays close attention to the development of the state of affair actively. The national related departments monitor the influence on causing in China of Japan's nuclear leakage in real time, and release authoritative information in time through the multiple channel. The broad masses, in front of this serious disaster, the correct attitude is neither panic, do not adopt a casual attitude either. The serious nuclear pollution brought to the earth environment in the face of the Japanese nuclear power station, we have reasons to believe, by human intelligence and modern scientific and technological means, this problem will be solved properly after all.
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