threshold limit value

简明释义

阈极限值

英英释义

例句

1.The threshold limit value (阈值限制值) for noise exposure is set to protect workers' hearing in industrial settings.

噪音暴露的阈值限制值被设定以保护工业环境中工人的听力。

2.Workers are required to wear protective gear when exposure levels reach the threshold limit value (阈值限制值) for toxic substances.

当暴露水平达到有毒物质的阈值限制值时，工人需要佩戴防护装备。

3.Monitoring systems are installed to alert staff when the air quality approaches the threshold limit value (阈值限制值).

安装了监测系统，以便在空气质量接近阈值限制值时提醒工作人员。

4.The factory must ensure that the concentration of hazardous materials does not exceed the threshold limit value (阈值限制值) set by environmental regulations.

工厂必须确保有害物质的浓度不超过环境法规设定的阈值限制值。

5.Regular training sessions are held to educate employees about the importance of the threshold limit value (阈值限制值) in maintaining workplace safety.

定期举行培训课程，以教育员工了解在维护工作场所安全中阈值限制值的重要性。

作文

In the field of environmental science and occupational health, the term threshold limit value refers to the maximum concentration of a substance in the workplace air that is considered safe for most workers over a specified time period. Understanding this concept is crucial for ensuring the safety and well-being of employees, as well as for maintaining compliance with regulatory standards. The threshold limit value is not just an arbitrary number; it is based on extensive research and data analysis that takes into account various factors such as exposure duration, individual susceptibility, and the nature of the chemical itself.For instance, when a new chemical is introduced into the workplace, health professionals conduct studies to determine its potential effects on human health. These studies often involve animal testing and epidemiological research to ascertain how different levels of exposure might affect workers. Once enough data is collected, experts can establish a threshold limit value that indicates the safe level of exposure for workers. This value is periodically reviewed and updated as new scientific evidence emerges.The importance of adhering to the threshold limit value cannot be overstated. Exceeding this limit can lead to various health issues, ranging from acute symptoms like headaches and dizziness to chronic conditions such as respiratory diseases or even cancer. Therefore, companies must implement monitoring systems to regularly measure the concentration of hazardous substances in the air. If levels approach or exceed the threshold limit value, immediate action must be taken to reduce exposure, which may include improving ventilation, providing personal protective equipment, or altering work practices.Moreover, the threshold limit value plays a significant role in regulatory compliance. Government agencies, such as the Occupational Safety and Health Administration (OSHA) in the United States, have established guidelines that include these values to protect workers. Employers are legally obligated to ensure that their workplaces do not expose employees to harmful levels of chemicals, and failure to comply can result in severe penalties.In addition to regulatory requirements, many organizations strive to create a culture of safety that goes beyond mere compliance. This involves educating employees about the risks associated with chemical exposure and the importance of adhering to the threshold limit value. Training sessions can empower workers to recognize hazardous situations and understand the significance of monitoring their environment.Furthermore, the concept of a threshold limit value extends beyond just air quality in the workplace. It can also apply to other environments, such as water quality and soil contamination. For example, in environmental regulations, a threshold limit value may be established for pollutants in drinking water to ensure public health safety. Understanding these limits helps communities advocate for cleaner environments and hold industries accountable for their impact on public health.In conclusion, the threshold limit value is a critical component in the fields of occupational health and environmental safety. It serves as a guideline for safe exposure levels, helping to protect workers from the harmful effects of hazardous substances. By understanding and adhering to these values, employers can foster a safer workplace, comply with regulations, and contribute to overall public health. Continuous education and monitoring are essential to ensure that these limits are respected and updated as necessary, ultimately leading to healthier and safer environments for everyone.

在环境科学和职业健康领域，术语阈值限值指的是在特定时间段内被认为对大多数工人安全的工作场所空气中物质的最大浓度。理解这一概念对于确保员工的安全与健康至关重要，同时也有助于保持与监管标准的合规性。阈值限值并不是一个随意的数字；它是基于大量研究和数据分析的结果，考虑到多种因素，如暴露持续时间、个体易感性以及化学物质的性质。例如，当一种新化学物质被引入工作场所时，健康专业人员会进行研究以确定其对人类健康的潜在影响。这些研究通常涉及动物实验和流行病学研究，以确定不同暴露水平可能对工人造成的影响。一旦收集到足够的数据，专家们就可以建立一个阈值限值，表明工人安全暴露的水平。随着新科学证据的出现，这一数值会定期审查和更新。遵守阈值限值的重要性不可低估。超过这一限制可能导致各种健康问题，从急性症状如头痛和眩晕，到慢性疾病如呼吸道疾病甚至癌症。因此，公司必须实施监测系统，定期测量空气中有害物质的浓度。如果浓度接近或超过阈值限值，必须立即采取措施减少暴露，这可能包括改善通风、提供个人防护设备或改变工作实践。此外，阈值限值在法规合规中也发挥着重要作用。美国职业安全卫生管理局（OSHA）等政府机构已建立了包括这些值的指导方针，以保护工人。雇主在法律上有义务确保其工作场所不让员工暴露于有害化学物质的水平，未能遵守可能导致严重处罚。除了法规要求外，许多组织还努力创建一种超越简单合规的安全文化。这涉及教育员工有关化学暴露的风险以及遵守阈值限值的重要性。培训课程可以使工人能够识别危险情况，并理解监测环境的重要性。此外，阈值限值的概念不仅适用于工作场所的空气质量，也适用于其他环境，如水质和土壤污染。例如，在环境法规中，可能会为饮用水中的污染物设立阈值限值以确保公共健康安全。理解这些限制有助于社区倡导更清洁的环境，并追究行业对公共健康的影响。总之，阈值限值是职业健康和环境安全领域的关键组成部分。它作为安全暴露水平的指导方针，帮助保护工人免受有害物质的影响。通过理解和遵守这些值，雇主可以促进更安全的工作场所，遵守法规，并为整体公共健康做出贡献。持续的教育和监测对于确保这些限制得到尊重和必要时更新至关重要，最终为每个人创造更健康、更安全的环境。