ozone layer

简明释义

臭氧层(含大量溴氧的大气层

英英释义

例句

1.Increased UV exposure due to ozone layer depletion can lead to skin cancer.

由于臭氧层的减少，增加的紫外线暴露可能导致皮肤癌。

2.Governments around the world are working together to protect the ozone layer.

世界各国政府正在共同努力保护臭氧层。

3.The ozone layer helps to filter out harmful ultraviolet radiation from the sun.

臭氧层有助于过滤掉太阳发出的有害紫外线辐射。

4.The depletion of the ozone layer has raised concerns among scientists worldwide.

大气中的臭氧层的减少引起了全球科学家的关注。

5.We must take action to protect the ozone layer from harmful chemicals.

我们必须采取行动保护臭氧层免受有害化学物质的侵害。

作文

The ozone layer is a crucial part of our planet's atmosphere, located about 10 to 30 miles above the Earth's surface. It plays a vital role in protecting life on Earth by absorbing the majority of the sun's harmful ultraviolet (UV) radiation. Without the ozone layer, the intense UV rays would pose severe risks to human health, including an increase in skin cancers and cataracts, as well as detrimental effects on animals and plants. In recent decades, the ozone layer has been under threat due to human activities, particularly the release of chlorofluorocarbons (CFCs) and other ozone-depleting substances into the atmosphere. These chemicals were commonly found in aerosol sprays, refrigerants, and foam-blowing agents. Once released, they eventually reach the stratosphere, where they can remain for many years. The sunlight breaks down these compounds, releasing chlorine atoms that react with ozone (O3) molecules, leading to the depletion of the ozone layer. The consequences of this depletion are alarming. Studies have shown that a thinner ozone layer allows more UV radiation to reach the Earth's surface. This increase in UV exposure can lead to higher rates of skin cancer, weakened immune systems, and even harm to marine ecosystems, particularly phytoplankton, which forms the basis of the oceanic food web. Furthermore, terrestrial plant life can also be adversely affected, leading to reduced crop yields and biodiversity loss. Fortunately, global awareness of the issue has led to significant action. The Montreal Protocol, established in 1987, was a landmark agreement aimed at phasing out the production and consumption of CFCs and other ozone-depleting substances. This international treaty has been remarkably successful, and studies indicate that the ozone layer is on track to recover in the coming decades, provided that current regulations remain in place. In addition to policy changes, public awareness campaigns have played a crucial role in educating individuals about the importance of the ozone layer and how they can contribute to its protection. Simple actions, such as avoiding products containing CFCs, using alternatives to aerosols, and supporting environmentally friendly policies, can make a difference. In conclusion, the ozone layer is an essential shield that protects life on Earth from harmful UV radiation. While it has faced significant challenges due to human activity, concerted global efforts have begun to reverse some of the damage. It is imperative that we continue to support and adhere to environmental policies that protect the ozone layer, ensuring a healthier planet for future generations. By understanding the importance of the ozone layer and taking action, we can all contribute to the preservation of this vital component of our atmosphere.

臭氧层是我们地球大气的重要组成部分，位于地球表面约10到30英里高的地方。它在保护地球生命方面发挥着至关重要的作用，通过吸收大多数太阳有害的紫外线（UV）辐射来保护生命。如果没有臭氧层，强烈的紫外线将对人类健康构成严重风险，包括皮肤癌和白内障的增加，还会对动物和植物产生不利影响。近年来，臭氧层受到威胁，主要是由于人类活动，特别是氯氟烃（CFCs）和其他破坏臭氧物质的释放。这些化学物质通常存在于喷雾剂、制冷剂和泡沫吹制剂中。一旦释放，它们最终会到达平流层，在那里可以保持多年。阳光会分解这些化合物，释放出氯原子，这些氯原子会与臭氧（O3）分子反应，导致臭氧层的耗损。这种耗损的后果令人担忧。研究表明，较薄的臭氧层允许更多的紫外线辐射到达地球表面。这种紫外线暴露的增加可能导致皮肤癌发病率上升、免疫系统减弱，甚至对海洋生态系统造成伤害，尤其是浮游植物，它们形成了海洋食物链的基础。此外，陆地植物也可能受到不利影响，导致作物产量减少和生物多样性丧失。幸运的是，全球对这一问题的关注促使采取了重大行动。1987年制定的《蒙特利尔议定书》是一项旨在逐步淘汰氯氟烃和其他破坏臭氧物质生产和消费的里程碑式协议。这项国际条约取得了显著成功，研究表明，如果当前的规定得以维持，臭氧层有望在未来几十年内恢复。除了政策变化，公众意识运动在教育个人了解臭氧层的重要性及其保护措施方面也发挥了关键作用。简单的行动，如避免使用含有CFCs的产品、使用替代品而不是喷雾剂以及支持环保政策，都可以产生影响。总之，臭氧层是保护地球生命免受有害紫外线辐射的重要屏障。尽管由于人类活动面临重大挑战，但全球的共同努力已开始逆转部分损害。我们必须继续支持并遵守保护臭氧层的环境政策，以确保为未来几代人创造一个更健康的星球。通过理解臭氧层的重要性并采取行动，我们都可以为保护这一大气中至关重要的组成部分做出贡献。