radioactive fall out

简明释义

放射性沉降

英英释义

例句

1.Emergency responders were trained to handle situations involving radioactive fall out.

应急响应人员接受了处理涉及放射性沉降情况的培训。

2.The government issued a warning about the dangers of radioactive fall out following the test.

政府在测试后发出警告，提醒人们注意放射性沉降的危险。

3.After the nuclear accident, the region was heavily affected by radioactive fall out.

核事故后，该地区受到严重的放射性沉降影响。

4.Scientists studied the effects of radioactive fall out on local wildlife.

科学家研究了放射性沉降对当地野生动物的影响。

5.Children were advised to stay indoors to avoid exposure to radioactive fall out.

建议儿童待在室内，以避免接触到放射性沉降。

作文

The term radioactive fall out refers to the residual radioactive material that is propelled into the upper atmosphere following a nuclear explosion or a nuclear accident. This phenomenon poses significant health and environmental risks, making it crucial for society to understand its implications. The radioactive fall out can contaminate air, water, and soil, leading to long-term ecological damage and posing serious threats to human health. When a nuclear bomb detonates, it releases a vast amount of energy, resulting in the vaporization of materials and the formation of a mushroom cloud. As this cloud rises and cools, particles begin to condense and fall back to the earth as radioactive fall out. These particles can include isotopes such as cesium-137, iodine-131, and strontium-90, which have varying half-lives and biological impacts.Understanding the effects of radioactive fall out is essential for public safety. For instance, exposure to high levels of radiation can lead to acute radiation sickness, characterized by symptoms like nausea, vomiting, and even death in severe cases. Long-term exposure can increase the risk of cancer and other serious health conditions. This highlights the necessity for effective evacuation plans and emergency response strategies in areas near potential nuclear sites.In addition to health risks, radioactive fall out can have devastating effects on agriculture and wildlife. Contaminated soil can render land unusable for farming, leading to food shortages and economic distress. Livestock can also be affected, as they may ingest contaminated feed or water, which can subsequently enter the human food chain. Thus, the impact of radioactive fall out extends beyond immediate health concerns, affecting entire ecosystems and economies.The historical context of radioactive fall out includes notable events such as the Chernobyl disaster in 1986 and the Fukushima Daiichi nuclear disaster in 2011. In both instances, large amounts of radioactive fall out were released into the environment, prompting widespread evacuations and long-term health studies. The aftermath of these disasters has led to increased scrutiny of nuclear energy policies and the implementation of stricter safety regulations.Moreover, public awareness and education about radioactive fall out are vital. Communities living near nuclear power plants must be informed about the potential risks and prepared for emergencies. Educational programs can help individuals understand the importance of monitoring radiation levels and recognizing the signs of contamination. This proactive approach can mitigate the dangers associated with radioactive fall out and enhance community resilience.In conclusion, the concept of radioactive fall out encompasses a range of health, environmental, and social issues that demand attention. By understanding its causes and consequences, society can better prepare for and respond to nuclear incidents. It is imperative to foster a culture of safety and preparedness to protect future generations from the potentially devastating effects of radioactive fall out.

短语放射性沉降指的是在核爆炸或核事故后被喷射到高空的大量残余放射性物质。这一现象对健康和环境构成了重大风险，因此社会必须理解其影响。放射性沉降可以污染空气、水和土壤，导致长期的生态损害，并对人类健康造成严重威胁。当核弹爆炸时，会释放出大量能量，导致材料蒸发并形成蘑菇云。随着这个云层上升和冷却，颗粒开始凝结并作为放射性沉降落回地球。这些颗粒可能包括铯-137、碘-131和锶-90等同位素，它们具有不同的半衰期和生物影响。理解放射性沉降的影响对于公共安全至关重要。例如，暴露于高水平的辐射可能导致急性辐射病，表现为恶心、呕吐，甚至在严重情况下导致死亡。长期暴露可能增加癌症和其他严重健康状况的风险。这突显了在潜在核设施附近地区制定有效撤离计划和紧急响应策略的必要性。除了健康风险外，放射性沉降还可能对农业和野生动物产生毁灭性影响。受到污染的土壤可能使土地无法用于耕种，导致粮食短缺和经济困境。牲畜也可能受到影响，因为它们可能摄入受污染的饲料或水，这可能随后进入人类食物链。因此，放射性沉降的影响超出了即时健康问题，影响整个生态系统和经济。放射性沉降的历史背景包括1986年的切尔诺贝利灾难和2011年的福岛第一核电站灾难。在这两个事件中，大量放射性沉降被释放到环境中，导致大规模撤离和长期健康研究。这些灾难的后果导致对核能政策的更严格审查和更严格安全法规的实施。此外，提高公众对放射性沉降的认识和教育至关重要。生活在核电站附近的社区必须了解潜在风险并为紧急情况做好准备。教育项目可以帮助个人理解监测辐射水平的重要性以及识别污染迹象。这种主动的方法可以减轻与放射性沉降相关的危险，并增强社区的韧性。总之，放射性沉降的概念涵盖了一系列需要关注的健康、环境和社会问题。通过理解其原因和后果，社会可以更好地为核事件做好准备并作出响应。培养安全和准备文化对于保护未来几代人免受放射性沉降潜在毁灭性影响至关重要。