maximum permissible concentration

简明释义

最大容许浓度

英英释义

例句

1.The factory must ensure that the levels of toxic chemicals do not exceed the maximum permissible concentration (最大允许浓度) set by environmental regulations.

工厂必须确保有毒化学物质的水平不超过环境法规设定的最大允许浓度。

2.Before starting the experiment, we checked the maximum permissible concentration (最大允许浓度) of the reagents to ensure safety.

在开始实验之前，我们检查了试剂的最大允许浓度以确保安全。

3.The safety data sheet provided information on the maximum permissible concentration (最大允许浓度) of the chemical in different environments.

安全数据表提供了该化学品在不同环境中最大允许浓度的信息。

4.Regular monitoring is essential to ensure that the maximum permissible concentration (最大允许浓度) of pollutants is not exceeded in the water supply.

定期监测对于确保水供应中的污染物不超过最大允许浓度至关重要。

5.The report indicated that the air quality met the maximum permissible concentration (最大允许浓度) for particulate matter.

报告指出，空气质量达到了颗粒物的最大允许浓度。

作文

In the field of environmental science and public health, the term maximum permissible concentration refers to the highest level of a substance that is allowed in a given environment without causing harm to human health or the ecosystem. This concept is crucial for regulatory agencies worldwide as they work to establish guidelines that protect both people and nature from the adverse effects of pollutants and hazardous materials. Understanding the maximum permissible concentration of various substances can help in assessing risks and implementing safety measures in industrial processes, agriculture, and urban development.For instance, in the context of air quality, the maximum permissible concentration of pollutants such as sulfur dioxide (SO2) and nitrogen oxides (NOx) is determined based on extensive research into their effects on human health. These limits are set to ensure that the air we breathe remains safe and does not lead to respiratory problems or other health issues. Similarly, in water quality management, the maximum permissible concentration of contaminants like heavy metals or pesticides is established to protect aquatic life and ensure safe drinking water for communities.The establishment of these concentration limits often involves a complex process of scientific evaluation and public policy. Experts conduct toxicity studies to determine the effects of different substances at various levels of exposure. Once the data is collected, regulatory bodies analyze the findings to set thresholds that balance economic activities with health and environmental protection. These thresholds are not static; they may be revised as new research emerges and as our understanding of certain chemicals evolves.Moreover, the maximum permissible concentration is not only applicable to chemical substances but also to biological agents. For example, in food safety, the allowable limits for pesticide residues on fruits and vegetables are established to ensure that consumers are not exposed to harmful levels. This helps maintain public trust in the food supply and supports the agricultural industry by providing clear guidelines for safe practices.In recent years, there has been an increasing focus on emerging contaminants, such as microplastics and pharmaceuticals, which pose new challenges for regulatory frameworks. The maximum permissible concentration for these substances is still being determined, as ongoing research seeks to understand their long-term effects on both human health and the environment. As scientists uncover more about these contaminants, it becomes essential to adapt regulations to safeguard public health effectively.In conclusion, the concept of maximum permissible concentration plays a vital role in environmental protection and public health. It serves as a benchmark for assessing the safety of various substances in our surroundings. By adhering to these limits, we can minimize health risks and preserve the integrity of our ecosystems. As we continue to face new environmental challenges, the importance of establishing and updating these concentrations will only grow, highlighting the need for ongoing research and proactive policy-making to protect our planet and its inhabitants.

在环境科学和公共健康领域，术语最大允许浓度指的是在不对人类健康或生态系统造成伤害的情况下，某种物质在特定环境中允许存在的最高水平。这个概念对于全球的监管机构至关重要，因为他们致力于建立保护人类和自然免受污染物和危险材料不良影响的指导方针。理解各种物质的最大允许浓度有助于评估风险并在工业过程、农业和城市发展中实施安全措施。例如，在空气质量的背景下，污染物如二氧化硫（SO2）和氮氧化物（NOx）的最大允许浓度是根据对其对人类健康影响的广泛研究而确定的。这些限制旨在确保我们呼吸的空气保持安全，不会导致呼吸问题或其他健康问题。类似地，在水质管理中，重金属或农药等污染物的最大允许浓度被设定，以保护水生生物并确保社区的饮用水安全。这些浓度限制的建立通常涉及科学评估和公共政策的复杂过程。专家进行毒性研究，以确定不同物质在各种暴露水平下的影响。一旦数据收集完成，监管机构会分析结果，以设定平衡经济活动与健康和环境保护的阈值。这些阈值不是静态的；随着新研究的出现，它们可能会被修订，因为我们对某些化学物质的理解不断演变。此外，最大允许浓度不仅适用于化学物质，还适用于生物因子。例如，在食品安全方面，对水果和蔬菜上农药残留的允许限量被建立，以确保消费者不会接触到有害水平。这有助于维护公众对食品供应的信任，并通过提供安全实践的明确指南来支持农业产业。近年来，越来越多地关注新兴污染物，例如微塑料和药物，这给监管框架带来了新的挑战。这些物质的最大允许浓度仍在确定中，因为持续的研究试图了解它们对人类健康和环境的长期影响。随着科学家们对这些污染物的了解不断加深，调整法规以有效保护公众健康变得至关重要。总之，最大允许浓度的概念在环境保护和公共健康中发挥着至关重要的作用。它作为评估我们周围各种物质安全性的基准。通过遵守这些限制，我们可以最小化健康风险，保护生态系统的完整性。随着我们继续面临新的环境挑战，建立和更新这些浓度的重要性只会增加，突显出持续研究和积极政策制定以保护我们的星球及其居民的必要性。