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IAEA team gathers samples near Fukushima as treated radioactive water is released_我的网站

一 |     IWAKI, Japan -- A member of the International Atomic Energy Agency team visiting Fukushima for its first marine sampling since the Fukushima Daiichi nuclear power plant started releasing treated radioactive wastewater into the sea said Thursday he does not expect any rise in radiation levels in the fish caught in the regional seas.The IAEA team watched flounder and other popular kinds of fish being caught off the coast earlier Thursday and brought on boats to the Hisanohama port in southern Fukushima for an auction.“I can say that we don’t expect to see any change starting in the fish," said Paul McGinnity, an IAEA marine radiology scientist.A small rise in the levels of tritium, which cannot be removed from the Fukushima Daiichi wastewater by the plant's treatment system called ALPS, is possible in locations close to the discharge points, but the levels of radioactivity are expected to be similar to those measured before the discharge last year, he said. Fukushima Daiichi started releasing wastewater into the sea on Aug. 24. The release, which is expected to continue for decades, has been strongly opposed by fishing groups and neighboring countries including South Korea, where hundreds of people have protested.China immediately banned all imports of Japanese seafood the day the release began, badly hurting Japanese seafood producers, processors and exporters, and Russia recently joined China in the trade restrictions.The IAEA has reviewed the safety of the wastewater release and concluded in July that if carried out as planned, it would have a negligible impact on the environment, marine life and human health.During the Oct. 16-23 visit, the IAEA team also inspected the collection and processing of seawater and marine sediment near the plant, which suffered triple meltdowns following the March 2011 earthquake and tsunami.The IAEA's visit is significant not only because it is the first since the discharge began but also since the IAEA will be able to see firsthand how the fish is sampled and packed, McGinnity said. This will help them better evaluate the results, not just from laboratory testing and data analysis, he said.IAEA selected six species of fish — olive flounder, crimson sea bream, redwing searobin, Japanese jack mackerel, silver croaker and vermiculated puffer fish — because they are known to have higher levels of radioactivity than other species due to the areas they tend to move around in, McGinnity said. The Japanese government asked the IAEA to conduct the environmental and fish sampling to build confidence about the data that Japan provides amid skepticism in some IAEA member states, McGinnity said without identifying which countries.The sample collection team includes two staff from the IAEA Marine Environment Laboratories in Monaco, as well as experts from laboratories in China, South Korea and Canada.The fish collected Thursday were to be shipped to a Fisheries Agency laboratory in Chiba, near Tokyo, where the IAEA team will inspect them on Friday.They will send identical samples to about a dozen participating laboratories, including in Japan, China, South Korea and Canada, for comparison and analysis of radioactivity and evaluation, the IAEA said. The sampling work will be followed by a separate IAEA task force that will review the safety of the treated radioactive water.Japan’s government has set up a relief fund to help find new markets and reduce the impact of China’s seafood ban. Measures include the temporary purchase, freezing and storage of seafood and promotion of seafood sales at home.TEPCO and the government say discharging the water into the sea is unavoidable because the tanks will reach their 1.37 million-ton capacity next year and space at the plant will be needed for its decommissioning, which is expected to take decades, if it is achievable at all.They say the water is treated to reduce radioactive materials to safe levels, and then is diluted with seawater by hundreds of times to make it much safer than international standards. Some experts say such long-term release of low-dose radioactivity is unprecedented and requires close monitoring.。

二 |     8月26日消息，近日，小天才电话手表的健康监测功能引发热议，因一则体重判定结果，遭到网友广泛质疑，同时也引发大众对智能设备健康测评科学性的讨论。    事情源自有网友在社交平台曝光相关截图并发文吐槽。截图显示，一名身高167cm、体重50.5kg的青春期女生，被小天才电话手表健康功能判定为“偏重”，系统更是标注该体重“超过99%的同龄女生”。

三 |     对此，发帖网友质疑：标准究竟如何界定？片面的判定结果，极易给青春期孩子造成严重的身材焦虑、容貌焦虑，误导青少年对健康体态的认知。    该内容引发网友共鸣，大量网友纷纷表示不解与反对。多数网友认为，167cm、50.5kg的身材属于偏瘦标准，完全不存在偏重、超重情况。无论手表测评的底层算法逻辑如何，直接输出“超过99%同龄女生”的判定结论，缺乏科学依据。    不少网友担忧，这类不严谨的健康判定，会错误引导儿童及青少年，催生不必要的体重焦虑，不利于青少年身心健康成长。    

    针对此次争议，有媒体联系到小天才电话手表官方客服进行核实。客服工作人员回应称，手表健康监测中心的身高、体重相关判定数据，由用户手动录入，系统依据BMI数值自动生成测评结果。

四 |     同时，官方表示设备的BMI判定标准参考国家卫生健康委员会卫生行业标准，APP内也已标注对应的参考来源与参考阈值。    后续在媒体表明身份、进一步追问判定合理性后，小天才电话手表官方客服表示该问题需转交相关部门核实，后续将给出正式回复。     值得注意的是，据国家卫健委官方权威资料，BMI即身体质量指数，是目前国际通用的衡量人体胖瘦程度、身体健康状态的核心标准，计算公式为：体重（千克）÷ 身高（米）的平方。    我国针对不同年龄段人群，制定了差异化的BMI健康评价体系，并非采用统一标准：7岁以下儿童采用年龄别BMI标准差法进行健康评价；7至18岁儿童青少年，严格按照性别、年龄对应的BMI界值，开展超重、肥胖专项筛查。    按照官方公式核算，此次争议事件中的女生，BMI数值约为18.1。对照国家卫健委发布的青少年体重管理指导原则来看，9至18岁青春期女生18.1的BMI数值未达到超重、偏重范畴。     

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