But when hydrochloric acid dissolves in water droplets, it forms reactive ozone-depleting molecules.

但是，当盐酸溶解在水滴中时，它会形成性的破坏臭氧的分子。

Other aerosols can host chemical reactions that damage the ozone layer.

其他气溶胶可以主导伤害臭氧层的化学。

Here, the extremely cold temperatures and unique structure of Antarctic clouds accelerated ozone loss.

在，寒的温度和独特的南云层结构加速了臭氧的损失。

In 1985, scientists discovered a massive loss of ozone here: right over Antarctica.

1985年，科学家们在里发现了臭氧的大量流失：就在南洲上空。

These ozone-destroying chemicals are used in aerosol sprays on Earth.

种能够破坏臭氧层的化学物质在地球上用于气雾喷雾器。

At ground level, high levels of ozone can harm people's lungs and damage plants.

在地面上，高浓度的臭氧会损害人们的肺部和植物。

Unsaturated bonds are more reactive, and it is here that ozonolysis does its work.

不饱和性更强，就是臭氧分解的作用。

An international report says human action to save the ozone layer appears to have worked.

一份国际报告称，人类拯救臭氧层的行动似乎奏效了。

But by 1985, it became clear that ozone depletion, especially over Antarctica, was happening much faster.

但到了 1985 年，很明显臭氧的消耗，尤其在南上空的发生得快很多。

Scientists stationed in Antarctica noticed a massive drop in overhead ozone occurring every spring.

驻扎在南洲的科学家注意到了每年春天上空臭氧的大幅下降。

Therefore, when you go shopping you should choose ozone-friendly products.

因此，在你购物时，你该挑选不破坏臭氧层的产品。

The hole in the ozone layer is getting smaller.

臭氧层的空洞正越来越小。

It would be enough to totally destroy the Earth's ozone layer.

足以彻底摧毁地球的臭氧层。

These then react with ozone, destroying it faster than it can be replenished.

而其与臭氧发生，将其消除，远超过臭氧再生的速率。

The disappearing ozone layer causes increased temperatures around the world, triggering cyclones, tsunamis and hurricanes.

臭氧层的消失导致全球气温升高，引发龙卷风，海啸和飓风。

Near Earth, ozone in the air is a danger to life.

地球周边空气所含的臭氧对人类有害。

They're getting ready to take part in a NASA project to measure ozone. The students hear the sound of information.

他们准备加入NASA测量臭氧的项目，学生们在听信息的声音。

A chemical that helped to create a hole in the ozone layer is reappearing.

一种导致臭氧层空洞的化学物质重新出现。

The ozone layer, our protection against the sun's UV rays, is made of oxygen.

氧气组成的臭氧层使人免受紫外线伤害。

This means the size of the ozone hole changes year on year.

意味着臭氧层空洞的大小每年都在改变。”