Detection radiates things in the Beijing-Tianjin Henan Province spinach The density of Shanghai turned over 8 times relatively last week

Detection radiates things in the Beijing-Tianjin Henan Province spinach The density of Shanghai turned over 8 times relatively last week
Tianjin Henan of Beijing plants and detects iodine - 131 in the spinach in the open 1. Detect iodine - 131 in the spinach planted in the open in Beijing and Tianjin recently, how are the detailed conditions? Have influence on public health? Inspect in the spinach which the Ministry of Health plants from Beijing, Tianjin and Henan area in the open on April 5 by random samples and find micro- radioactive iodine - 131, the content is 1-3Bq/kg respectively. Because of iodine of detection - 131 traces, the situation has not influenced public health at present. 2.Why choose the spinach to measure? The vegetables radioactive pollution monitoring experience shows in the nuclear accident previously: Large leaf, vegetables with small fine hair of surface growing in the open are apt to absorb the radioactive material subsiding in the air. So, choosing the spinach to measure is can be in order to find whether the vegetables are polluted by the radioactive material earlier. Practice has proved, can reduce the radioactive material on the surface of vegetables to wash effectively with water. 3.Iodine - 131 of detection happen to appear after the rainfall in open-air spinach this time, what does it have to do with the two? The radioactive material in the air will subside to the ground finally. Because of the intersection of air and the intersection of medium-level radioactive substance and the intersection of density and trace very much in our country at present, the vegetables radioactive pollution caused is generally difficult by detection that it subsides. The light rain appears in Beijing, Tianjin area recently, the rainfall accelerated the subsiding of the air medium-level radioactive substance, and the light rain makes these materials can have been retained and has not been washed away on the surface of the spinach again, so micro- iodine - 131 of detection in spinach sample. 4.Does the radioactive nuclide of the food find result and air find whether the result has relevance? Radioactive material in the air subside, can pollute ground and food of vegetables,etc. that grow in the open. The higher the density of the air medium-level radioactive substance is, the more radioactive materials of surface of vegetables subsiding to the ground and growing in the open are. The sleet weather can accelerate the subsiding of the air medium-level radioactive substance. 5.Is the work measured to food and drinking water now how to be disposed and launched? After the accident of Fukushima nuclear power station of Japan happens on March 11, 2011, Ministry of Public Health disposes the Northeast and coastal area relevant organization and does food and drinking water well and monitors the preparation rapidly, China's disease accuses of centre's working out and finishing the training technique scheme and carrying on the technical training to the detection personnel of relevant organizations. After on the 26th the country is nuclear to meet an urgent need to coordinate the committee to announce that detects iodine - 131 in the air, Ministry of Public Health trusts Center for Disease Prevention and Control of China in Liaoning immediately, 14 provinces and cities such as Hebei, Jiangsu, Zhejiang, Beijing, Shanghai, Guangdong, Shandong,etc. have launched the food and radioactive monitoring of drinking water. 6.Increase with the regional rainfall gradually, will the pollution of radioactive nuclide be more and more serious in the food and water? What safeguard procedures can the public take? This depends on the density of the air medium-level radioactive substance. The density of the air medium-level radioactive substance depends on the quantity of the radioactive material that Fukushima nuclear power station of Japan releases in and duration, and meteorological condition is (such as wind direction, wind speed and atmospheric circulation) . Rainy the intersection of time and size and the intersection of rainfall and size will influence the intersection of vegetables and radioactive level of pollution of material directly. The monitoring result trace of radioactive nuclide in the food, will not influence public health at present, do not need to take the safeguard procedures. Ask the public to pay close attention to the fact government's authority releases, in order to know situation progress. Iodine of Shanghai - density 131 compares March 28 at least 8 times higher Yesterday, Shanghai radiation environmental supervisory station was after analyzing the aerosol sample that is gathered in the air, detect the radioactive nuclide iodine of manpower - 131 and cesium - 137. Compare, will stand data that monitor, the intersection of testing result and cesium - 137 more this March 28, iodine - density of 131 is higher than 8 times at least at the same time; But the expert says, the artificial nuclide of this density still belongs to the trace extremely, will not exert an influence on environment and health, needn't take any safeguard procedures! Shanghai Municipal Environmental Protection Agency releases news and claims, the environmental supervisory station yesterday of radiation was after analyzing the aerosol sample that is gathered in the air, detect extremely micro- manpower radioactive nuclide iodine - 131, its density is 7.93* 10-4 Bake / cubic meter; The radioactive nuclide of manpower is cesium - 137, its density is 8.39* 10-5 Bake / cubic meter. Will not exert an influence on environment and health, needn't take any safeguard procedures. The reporter of www.eastday.com notices, will stand and monitor artificial nuclide iodine that the density is lower than 10-4 Bake / cubic meter - 131 to compare for March 28, in the data monitored this time, iodine - density 131 is 8 times higher at least. Normally,that 131 iodine half-life 8 day,why after over 8 day, iodine - are there density 131s? Environmental supervisory station expert expresses the radiation of Shanghai, because such factors as the atmosphere is spread, new iodine - 131 " Supplementary " Come over,in addition, before find, iodine that declined more than half at present already - 131, be led to the fact whether there aren't density of it. However, the expert says, though by the look of data, turn over 8 times, remain the extreme trace in density value, will not cause danger to the human body, does not need to take the safeguard procedures. Cesium - 137 of artificial nuclide found recently, the expert introduces, this is one of the by products of nuclear fission in nuclear bomb, nuclear weapon test and nuclear reactor, will release the agate ray of gal, half-life is relatively long, is up to 30 years. "Should come through atmospheric circulation too, the trace deeply of density which Shanghai monitors at present, will not cause danger to the human body too. "

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