The ozone hole had been growing for decades over Antarctica.

几十年来，南极洲上空的臭氧层空断扩大。

Next, a dryer-like tumbler uses ozone to fade jeans.

接下来，一个干式滚筒利用臭氧使牛仔裤褪色。

Around the earth, there's a special kind of oxygen call " ozone" (O3).

地球周围有一种很特别的氧，名为“臭氧”（O3）。

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

其他气溶胶可主导伤害臭氧层的化学反应。

However, the study said the ozone layer is improving.

然而，该研究称，臭氧层正改善。

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

这意味着臭氧层空的大小每年都改变。”

Earth's protective ozone layer 'on track' to recover by 2066.

地球的保护性臭氧层“有望” 2066 年之前恢复。

But closer to Earth's surface, ozone is a common pollutant.

但更靠近地球表面的话，臭氧就会是一种常见的污染物。

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。

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

这足摧毁地球的臭氧层。

" … hole in the ozone shield is the size of the continental United States."

“臭氧层上的空有美国大陆那么大。”

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。

Ground level ozone and particle pollution are the greatest threat to human health.

地表臭氧和颗粒污染物是人类健康的最大威胁。

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

“具有保护作用的臭氧层正受到前所未有的威胁。”

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

一种导致臭氧层空的化学物质重新出现。

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。

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。

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。

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愈合。

It's linked to global warming, acid rain, effects on wildlife, depletion of the ozone layer.

空气污染和全球变暖、酸雨、野生动物保护、臭氧层耗竭这些问题息息相关。