lead equivalent

简明释义

铅当量

英英释义

例句

1.When designing a shield for X-ray machines, engineers often refer to the lead equivalent thickness required for adequate safety.

在设计X光机的屏蔽时，工程师通常参考所需的铅当量厚度以确保足够的安全性。

2.The radiation exposure from this device is measured in terms of lead equivalent, which indicates how much lead would be needed to provide the same level of protection.

这个设备的辐射暴露量以铅当量来衡量，这表示需要多少铅才能提供相同水平的保护。

3.In the hospital, we have specific guidelines for using materials with a certain lead equivalent to protect staff from radiation.

在医院，我们有使用具有特定铅当量材料的具体指南，以保护工作人员免受辐射。

4.For personal protective equipment, a gown with a lead equivalent of 0.25 mm is often recommended.

对于个人防护装备，通常推荐使用铅当量为0.25毫米的防护服。

5.The walls of the radiology room are constructed with a lead equivalent of 1.5 mm to ensure patient safety.

放射科的墙壁采用1.5毫米的铅当量构建，以确保患者安全。

作文

In the field of environmental science and public health, the term lead equivalent refers to a measure that quantifies the potential toxicity of various substances in comparison to lead. This concept is crucial because lead is known for its detrimental effects on human health and the environment. When we talk about lead equivalent, we are essentially trying to understand how other metals or chemicals can pose similar risks as lead does. For instance, certain heavy metals like cadmium or mercury may have different levels of toxicity, but they can be assessed using the lead equivalent metric to determine their relative danger.The importance of understanding lead equivalent cannot be overstated, especially in urban areas where industrial pollution is prevalent. Many people may not realize that everyday items, such as batteries, paints, and even some types of jewelry, can contain harmful levels of metals that could be measured against the lead equivalent standard. Public health officials often use this measure to prioritize interventions and regulations aimed at minimizing exposure to these toxic substances.For example, let’s consider a scenario where a community is exposed to high levels of cadmium from a nearby industrial site. By calculating the lead equivalent of cadmium exposure, health officials can better communicate the risks to the public. If the lead equivalent of cadmium is found to be significantly higher than that of lead, it may prompt immediate action to mitigate exposure, such as cleanup efforts or stricter regulations on emissions.Moreover, the concept of lead equivalent extends beyond just individual substances. It can also apply to mixtures of chemicals. In many cases, people are exposed to multiple toxins simultaneously, making it essential to have a comprehensive understanding of how these substances interact. By using the lead equivalent framework, researchers can assess the cumulative risk posed by various chemicals and develop strategies to address them effectively.In conclusion, the term lead equivalent serves as a vital tool in environmental health risk assessment. It allows scientists and public health officials to compare the toxicity of different substances to lead, thereby facilitating better risk management and regulatory decisions. As we continue to navigate the complexities of pollution and its impacts on health, the lead equivalent will remain an important benchmark for understanding and mitigating risks associated with hazardous materials. Awareness and education about the implications of lead equivalent can empower communities to advocate for safer environments and promote public health initiatives that protect vulnerable populations from toxic exposures.

在环境科学和公共卫生领域，术语铅当量指的是一种衡量不同物质潜在毒性与铅相比较的标准。这个概念至关重要，因为铅以其对人类健康和环境的有害影响而闻名。当我们谈论铅当量时，我们实际上是在试图理解其他金属或化学物质如何可能带来与铅类似的风险。例如，某些重金属如镉或汞可能具有不同程度的毒性，但可以使用铅当量指标来评估它们的相对危险性。理解铅当量的重要性不容小觑，尤其是在工业污染普遍的城市地区。许多人可能没有意识到，日常用品如电池、油漆，甚至某些类型的珠宝，都可能含有有害水平的金属，这些金属可以根据铅当量标准进行测量。公共卫生官员通常使用这一指标来优先处理干预措施和法规，旨在最小化对这些有毒物质的暴露。例如，假设一个社区因附近工业场所的高镉水平而受到影响。通过计算镉暴露的铅当量，卫生官员可以更好地向公众传达风险。如果镉的铅当量被发现显著高于铅，这可能促使立即采取措施来减轻暴露，例如清理工作或对排放实施更严格的法规。此外，铅当量的概念不仅适用于单一物质，也适用于化学混合物。在许多情况下，人们同时接触多种毒素，因此必须全面了解这些物质的相互作用。通过使用铅当量框架，研究人员能够评估各种化学物质所构成的累积风险，并制定有效的应对策略。总之，术语铅当量在环境健康风险评估中作为一个重要工具。它使科学家和公共卫生官员能够将不同物质的毒性与铅进行比较，从而促进更好的风险管理和监管决策。随着我们继续应对污染及其对健康的影响，铅当量将继续作为理解和减轻有害材料相关风险的重要基准。提高对铅当量含义的认识和教育，可以使社区更有能力倡导安全环境，并推动保护易受害人群免受有毒暴露的公共卫生倡议。