natural background radiation

简明释义

本底辐射

英英释义

例句

1.The level of natural background radiation is measured in microsieverts per hour.

每小时的自然背景辐射水平以微西弗为单位进行测量。

2.The natural background radiation in some mountainous regions can be significantly higher.

某些山区的自然背景辐射可能显著更高。

3.People living in areas with high natural background radiation may have increased health risks.

生活在高自然背景辐射地区的人可能面临更高的健康风险。

4.Certain rocks and soils emit higher levels of natural background radiation than others.

某些岩石和土壤发出的自然背景辐射水平高于其他类型。

5.Radiation detectors are used to monitor natural background radiation in the environment.

辐射探测器用于监测环境中的自然背景辐射。

作文

Natural background radiation is a term that refers to the ionizing radiation present in the environment that originates from natural sources. This type of radiation is a part of our daily lives and is emitted from various elements found in the earth, cosmic rays from outer space, and even from our own bodies. Understanding natural background radiation (自然背景辐射) is crucial for several reasons, including health, safety, and environmental awareness.Firstly, it is important to recognize the sources of natural background radiation (自然背景辐射). The most significant contributors are radon gas, which seeps from the ground, and cosmic rays that bombard the Earth from outer space. Additionally, certain rocks and soil contain radioactive materials such as uranium, thorium, and potassium-40. These materials decay over time, releasing radiation. Even the food we eat and the air we breathe contribute to our exposure to natural background radiation (自然背景辐射).Secondly, the levels of natural background radiation (自然背景辐射) vary significantly depending on geographical location. For instance, areas with high elevations or those near uranium mines tend to have higher levels of radiation due to the increased presence of radon and other radioactive materials. In contrast, regions with dense vegetation or lower altitudes may have lower radiation levels. This variance highlights the importance of understanding local environmental factors when assessing radiation exposure.Moreover, while natural background radiation (自然背景辐射) is generally low and not harmful to human health, prolonged exposure to elevated levels can pose risks. The World Health Organization (WHO) states that exposure to high levels of radiation can increase the likelihood of developing cancer and other health issues. Therefore, it is essential for individuals living in high-radiation areas to be aware of their exposure and take necessary precautions.In addition to health concerns, natural background radiation (自然背景辐射) plays a role in scientific research and environmental monitoring. Scientists study radiation levels to understand their impact on ecosystems and the long-term effects on wildlife. By monitoring these levels, researchers can also identify changes in the environment caused by human activities, such as mining or nuclear power generation.Furthermore, education about natural background radiation (自然背景辐射) is vital for public awareness. Many people are unaware of the radiation they are exposed to daily, leading to misconceptions and unnecessary fears regarding radiation in general. By providing accurate information and resources, communities can better understand the nature of radiation and its sources, reducing anxiety and promoting informed decision-making.In conclusion, natural background radiation (自然背景辐射) is an integral part of our environment, stemming from various natural sources. While it is typically low and manageable, understanding its implications is essential for public health, environmental science, and community awareness. By educating ourselves and others about natural background radiation (自然背景辐射), we can foster a more informed society that acknowledges both the benefits and risks associated with this ever-present phenomenon.