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

这种能够破坏臭氧层的化物质在地球上用于气雾喷雾器。

The ozone hole had been growing for decades over Antarctica.

几十年来，南极洲上空的臭氧层空洞在不断扩大。

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反应。

The 1987 Montreal Protocol phased out the use of chlorofluorocarbons, or CFCs, responsible.

分阶段撤销氯碳化物、氟氯碳化物、以及其他一些会对臭氧层造破坏的物质的使用。

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

这意味着臭氧层空洞的大小每年都在改变。”

" The protective ozone layer is being threatened as never before."

“有保护作用的臭氧层正受到前所未有的威胁。”

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

而其与臭氧发生反应，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。

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

不饱和键反应性更强，这就是臭氧分解的作用。

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物质重新出现。

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

氧气组的臭氧层使人免受紫外线伤害。

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。

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。

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

这足以彻底摧毁地球的臭氧层。

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，它会形反应性的破坏臭氧的分子。

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。

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

因此，在你购物时，你应该挑选不破坏臭氧层的产品。

A new United Nations report says the Earth's ozone layer appears to be healing.

联合国的一份新报告显示，地球的臭氧层似乎正在愈合。

40% of the layer had dissipated, creating a " hole" .

40%的臭氧层已经消散，形了一个“空洞”。

As a result, the hole in the ozone layer that forms above Antarctica has mostly stabilized.

因此, 在南极洲上空臭氧层形的空洞已经趋于稳定。