leaded gasoline

简明释义

加铅汽油

英英释义

例句

1.Mechanics often had to deal with engine problems caused by leaded gasoline residues.

机械师常常需要处理由铅汽油残留物引起的发动机问题。

2.The government banned leaded gasoline due to its negative impact on public health.

由于对公共健康的负面影响，政府禁止使用铅汽油。

3.Cars manufactured before the late 1990s were often designed to run on leaded gasoline.

1990年代末之前制造的汽车通常设计为使用铅汽油。

4.Environmental activists campaigned against the use of leaded gasoline in the 1980s.

环境活动家在1980年代发起了反对使用铅汽油的运动。

5.In the past, many cars used leaded gasoline, which is known to contain harmful substances.

在过去，许多汽车使用铅汽油，这种汽油含有有害物质。

作文

The use of leaded gasoline has been a significant topic in environmental discussions for decades. Leaded gasoline refers to gasoline that contains tetraethyl lead, a toxic compound added to enhance engine performance and prevent knocking. However, the harmful effects of lead on human health and the environment have led to a global movement to phase out its use. In the early 20th century, when leaded gasoline was introduced, it was hailed as a revolutionary advancement in automotive fuel technology. It allowed cars to run more smoothly and efficiently, which contributed to the rapid growth of the automobile industry. Unfortunately, the benefits came at a great cost. Studies began to emerge linking exposure to lead with serious health issues, particularly in children. Lead is a neurotoxin that can cause developmental delays, learning difficulties, and behavioral problems. As awareness of these risks grew, public health officials and environmental advocates campaigned vigorously against leaded gasoline. In the United States, the Environmental Protection Agency (EPA) took decisive action in the 1970s by implementing regulations to reduce lead levels in gasoline. This initiative was part of a larger effort to combat air pollution and protect public health. By the mid-1990s, the sale of leaded gasoline was banned in the U.S., and many other countries followed suit. The transition away from leaded gasoline has had a profound impact on air quality and public health. Studies have shown a significant decline in blood lead levels in children and a corresponding decrease in lead-related health issues. Furthermore, the removal of lead from gasoline has contributed to a cleaner environment, benefiting not only human health but also wildlife and ecosystems. Despite these successes, challenges remain. In some parts of the world, leaded gasoline is still in use, particularly in developing countries where regulations are less stringent. This continued reliance on leaded fuel poses a risk to public health and the environment. International organizations, such as the United Nations Environment Programme (UNEP), are working tirelessly to eliminate leaded gasoline globally. Their efforts include raising awareness about the dangers of lead exposure, providing technical assistance to countries transitioning to unleaded fuels, and promoting policies that support sustainable fuel alternatives. In conclusion, the story of leaded gasoline serves as a powerful reminder of the importance of regulatory action and public awareness in addressing environmental and health issues. The successful phase-out of leaded gasoline demonstrates that collective action can lead to significant positive change. As we continue to face new environmental challenges, it is crucial to learn from past experiences and remain vigilant in protecting public health and our planet.

使用铅汽油在几十年来的环境讨论中一直是一个重要话题。铅汽油指的是含有四乙基铅的汽油，这是一种有毒化合物，添加到汽油中以增强发动机性能并防止敲击。然而，铅对人类健康和环境的有害影响导致全球运动逐步淘汰其使用。在20世纪初，当铅汽油被引入时，它被誉为汽车燃料技术的一项革命性进步。它使汽车运行更加平稳和高效，这促进了汽车工业的快速发展。不幸的是，这些好处是以巨大的代价换来的。研究开始显示，接触铅与严重健康问题之间存在联系，特别是在儿童中。铅是一种神经毒素，会导致发育迟缓、学习困难和行为问题。随着对这些风险的认识不断提高，公共卫生官员和环境倡导者积极开展针对铅汽油的运动。在美国，环境保护署（EPA）在1970年代采取了果断行动，通过实施减少汽油中铅含量的法规。这一举措是更大努力的一部分，旨在应对空气污染并保护公众健康。到1990年代中期，铅汽油的销售在美国被禁止，许多其他国家也随之而来。淘汰铅汽油对空气质量和公共健康产生了深远影响。研究表明，儿童血铅水平显著下降，铅相关健康问题相应减少。此外，去除汽油中的铅还促进了环境的清洁，不仅有利于人类健康，还有利于野生动物和生态系统。尽管取得了这些成功，但挑战仍然存在。在世界某些地区，尤其是在监管较为宽松的发展中国家，铅汽油仍在使用。这种对铅汽油的持续依赖对公众健康和环境构成了风险。联合国环境规划署（UNEP）等国际组织正不懈努力，旨在全球范围内消除铅汽油。他们的努力包括提高人们对铅暴露危险的认识，为过渡到无铅燃料的国家提供技术支持，以及推动支持可持续燃料替代品的政策。总之，铅汽油的故事强烈提醒我们，在解决环境和健康问题时，监管行动和公众意识的重要性。成功淘汰铅汽油证明了集体行动可以带来显著的积极变化。随着我们继续面临新的环境挑战，至关重要的是从过去的经验中学习，并在保护公众健康和我们的星球方面保持警惕。