acute toxicity

简明释义

1. 急性毒; 2. 急性中毒;

英英释义

例句

1.Workers must wear protective gear when handling substances with acute toxicity.急性毒性

工人在处理具有急性毒性的物质时必须穿戴防护装备。

2.Symptoms of exposure to substances with acute toxicity can appear within minutes.急性毒性

接触具有急性毒性的物质后，症状可能在几分钟内出现。

3.The laboratory results indicated that the chemical compound had high acute toxicity.急性毒性

实验室结果表明该化合物具有高急性毒性。

4.The study focused on the acute toxicity of pesticides on aquatic life.急性毒性

该研究集中于农药对水生生物的急性毒性。

5.Regulatory agencies set limits on acute toxicity to protect public health.急性毒性

监管机构对急性毒性设定限制，以保护公众健康。

作文

Understanding the concept of acute toxicity is essential for anyone involved in environmental science, toxicology, or public health. Acute toxicity refers to the harmful effects that a substance can have on an organism after a short-term exposure, usually within 24 hours. This type of toxicity is often assessed through various tests that determine the lethal dose of a chemical compound, which is crucial for evaluating the safety of chemicals used in industries, agriculture, and consumer products.In the field of toxicology, scientists conduct experiments to identify the acute toxicity of substances by administering different doses to test organisms, such as rodents or fish. The results help establish what is known as the LD50 value, which indicates the dose required to kill half of the test population. A lower LD50 value signifies higher acute toxicity, meaning that even a small amount of the substance can cause significant harm. This information is vital for regulatory agencies to set safe exposure limits and for manufacturers to create safer products.For instance, consider the case of pesticides, which are commonly used in agriculture to protect crops from pests and diseases. While they are effective in increasing agricultural yield, many pesticides exhibit high levels of acute toxicity. This raises concerns about their impact not only on target pests but also on non-target organisms, including humans, wildlife, and beneficial insects. Therefore, understanding the acute toxicity of these chemicals is crucial for ensuring environmental safety and public health.Moreover, the implications of acute toxicity extend beyond individual health risks. In cases of accidental exposure, such as chemical spills or industrial accidents, the immediate effects can be devastating. Emergency responders must quickly assess the acute toxicity of the substances involved to implement appropriate measures to protect public safety and minimize environmental damage. This highlights the importance of having accurate and readily available toxicity data for hazardous materials.Furthermore, public awareness of acute toxicity is necessary for promoting safe practices in everyday life. Consumers should be informed about the potential risks associated with household products, such as cleaners, paints, and solvents, which may contain toxic ingredients. By understanding the concept of acute toxicity, individuals can make informed choices and take precautions to minimize their exposure to harmful substances.In conclusion, the concept of acute toxicity plays a critical role in protecting human health and the environment. It encompasses the study of how substances can cause harm after short-term exposure, and it informs regulations, safety standards, and public awareness initiatives. As we continue to navigate a world filled with chemicals, a solid understanding of acute toxicity will empower us to make safer choices and advocate for a healthier planet.

理解急性毒性的概念对任何参与环境科学、毒理学或公共卫生的人来说都是至关重要的。急性毒性指的是在短期接触后，物质对生物体产生的有害影响，通常在24小时内。这种毒性类型通常通过各种测试来评估，以确定化合物的致死剂量，这对于评估工业、农业和消费产品中使用的化学品的安全性至关重要。在毒理学领域，科学家通过向测试生物（如啮齿动物或鱼类）施用不同剂量的物质来识别其急性毒性。结果有助于建立LD50值，该值表示杀死一半测试人群所需的剂量。较低的LD50值意味着更高的急性毒性，这表明即使是少量物质也能造成显著危害。这些信息对于监管机构设定安全暴露限值以及制造商生产更安全的产品至关重要。例如，考虑农药的案例，农药通常用于农业中以保护作物免受害虫和疾病的侵害。虽然它们在提高农业产量方面有效，但许多农药表现出高水平的急性毒性。这引发了对其对目标害虫以外的生物（包括人类、野生动物和有益昆虫）影响的担忧。因此，理解这些化学物质的急性毒性对于确保环境安全和公共健康至关重要。此外，急性毒性的影响超出了个体健康风险。在意外接触的情况下，例如化学品泄漏或工业事故，立即的影响可能是毁灭性的。应急响应人员必须迅速评估涉及物质的急性毒性，以实施适当措施来保护公共安全并最小化环境损害。这突显了为危险材料提供准确和随时可用的毒性数据的重要性。此外，公众对急性毒性的认识对于促进日常生活中的安全实践也是必要的。消费者应了解与家庭产品（如清洁剂、油漆和溶剂）相关的潜在风险，这些产品可能含有有毒成分。通过理解急性毒性的概念，个人可以做出明智的选择，并采取预防措施以最小化他们接触有害物质的风险。总之，急性毒性的概念在保护人类健康和环境方面发挥着关键作用。它涵盖了物质如何在短期接触后造成伤害的研究，并为法规、安全标准和公众意识倡议提供信息。随着我们继续在充满化学品的世界中航行，对急性毒性的扎实理解将使我们能够做出更安全的选择，并倡导一个更健康的地球。