maximum admissible concentration

简明释义

最大容许浓度

英英释义

例句

1.The factory implemented new procedures after exceeding the maximum admissible concentration (最大允许浓度) of emissions last year.

该工厂在去年超过了排放的最大允许浓度后实施了新程序。

2.Workers must wear protective gear when exposure levels exceed the maximum admissible concentration (最大允许浓度) of hazardous substances.

当暴露水平超过有害物质的最大允许浓度时，工人必须穿戴防护装备。

3.Monitoring air quality is crucial to ensure that pollutants remain below the maximum admissible concentration (最大允许浓度).

监测空气质量对于确保污染物保持在最大允许浓度以下至关重要。

4.The laboratory test showed that the chemical's level was below the maximum admissible concentration (最大允许浓度) set by environmental regulations.

实验室测试表明，该化学物质的水平低于环境法规设定的最大允许浓度。

5.The maximum admissible concentration (最大允许浓度) for lead in drinking water is strictly enforced to ensure public safety.

饮用水中铅的最大允许浓度被严格执行，以确保公众安全。

作文

In recent years, environmental concerns have taken center stage in discussions about public health and safety. One critical aspect of this discourse is the concept of maximum admissible concentration, which refers to the highest level of a substance that is considered safe for human exposure in the environment. This term is particularly relevant when discussing pollutants, chemicals, and other hazardous materials that can affect air quality, water sources, and soil integrity. Understanding the implications of maximum admissible concentration is essential for ensuring the well-being of both individuals and communities.The maximum admissible concentration is determined based on extensive scientific research and risk assessment. Regulatory agencies, such as the Environmental Protection Agency (EPA) in the United States, conduct thorough evaluations to establish these limits. These assessments take into account various factors, including the toxicity of the substance, the duration of exposure, and the potential for bioaccumulation in living organisms. By setting these standards, authorities aim to minimize health risks associated with environmental contaminants.For example, consider the case of lead in drinking water. The maximum admissible concentration for lead is set at 15 parts per billion (ppb) by the EPA. This threshold is based on evidence linking lead exposure to serious health issues, particularly in children, such as developmental delays and cognitive impairments. When levels exceed this limit, immediate action is required to protect public health. Communities may need to implement measures such as replacing old pipes, increasing water filtration, or providing alternative drinking water sources.The importance of adhering to maximum admissible concentration guidelines cannot be overstated. Violations of these limits can lead to severe consequences, not only for individual health but also for the environment. For instance, industrial facilities that discharge pollutants into nearby rivers must monitor their emissions closely to ensure they remain within the established maximum admissible concentration. Failure to comply can result in legal penalties, damage to ecosystems, and long-term public health crises.Moreover, the concept of maximum admissible concentration extends beyond just chemical pollutants. It also applies to biological agents, such as bacteria and viruses, which can pose significant health risks when present in excessive amounts. For instance, during an outbreak of waterborne illness, health officials must quickly identify the maximum admissible concentration of harmful microorganisms to prevent widespread infection and protect vulnerable populations.Public awareness and education about maximum admissible concentration are crucial for promoting community health. Citizens should be informed about the potential hazards in their environment and the significance of regulatory standards. Community engagement can empower individuals to advocate for cleaner air, safer drinking water, and healthier living conditions. By understanding the implications of maximum admissible concentration, people can make informed decisions about their health and the environment.In conclusion, the concept of maximum admissible concentration plays a vital role in safeguarding public health and the environment. By establishing scientifically backed limits for hazardous substances, regulatory agencies help to mitigate risks associated with pollution and contamination. It is essential for individuals and communities to understand these standards and actively participate in efforts to maintain a safe and healthy environment. Through awareness and advocacy, we can work towards a future where the maximum admissible concentration of harmful substances is continually monitored and reduced, ensuring the well-being of all.

近年来，环境问题在公共健康和安全的讨论中占据了中心舞台。这个话题中一个关键的方面是最大允许浓度的概念，它指的是被认为对人类暴露是安全的物质的最高水平。这个术语在讨论污染物、化学品和其他可能影响空气质量、水源和土壤完整性的危险材料时尤为相关。理解最大允许浓度的含义对于确保个人和社区的福祉至关重要。最大允许浓度是基于广泛的科学研究和风险评估来确定的。美国环境保护局（EPA）等监管机构进行全面评估以建立这些限制。这些评估考虑了多种因素，包括物质的毒性、暴露的持续时间以及在生物体内的生物积累潜力。通过设定这些标准，相关部门旨在将与环境污染物相关的健康风险降到最低。例如，考虑饮用水中的铅的情况。EPA规定的铅的最大允许浓度为每十亿分之15（ppb）。这一阈值是基于证据，表明铅暴露与严重健康问题之间的联系，尤其是在儿童中，如发育迟缓和认知障碍。当铅含量超过这一限制时，必须立即采取行动以保护公众健康。社区可能需要实施更换旧管道、增加水过滤或提供替代饮用水源等措施。遵守最大允许浓度指导方针的重要性不容小觑。违反这些限制可能导致严重后果，不仅对个人健康，也对环境。例如，向附近河流排放污染物的工业设施必须密切监测其排放，以确保它们保持在已建立的最大允许浓度之内。不遵守可能导致法律处罚、生态系统破坏和长期公共健康危机。此外，最大允许浓度的概念不仅适用于化学污染物。它同样适用于生物因子，如细菌和病毒，当其存在于过量时可能会带来重大健康风险。例如，在水源性疾病爆发期间，卫生官员必须迅速识别有害微生物的最大允许浓度，以防止广泛感染并保护易受影响的人群。提高公众对最大允许浓度的认识和教育对于促进社区健康至关重要。公民应了解其环境中潜在的危害及监管标准的重要性。社区参与可以使个人能够倡导更清洁的空气、更安全的饮用水和更健康的生活条件。通过理解最大允许浓度的含义，人们可以就自己的健康和环境做出明智的决策。总之，最大允许浓度的概念在保护公众健康和环境方面发挥着至关重要的作用。通过建立科学依据的有害物质限值，监管机构帮助减轻与污染和污染相关的风险。个人和社区理解这些标准并积极参与维护安全健康环境的努力至关重要。通过提高意识和倡导，我们可以朝着一个未来努力，在这个未来中，有害物质的最大允许浓度将不断得到监测和降低，从而确保所有人的福祉。