Air quality is monitored for six pollutants: particulate matter, ground-level ozone, sulfur dioxide, nitrogen dioxide, carbon monoxide and lead.

空气质量监测包括颗粒物、地面臭氧、二氧化硫、二氧化氮、一氧化碳和铅六种污染物。

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。

A second important area is monitoring the size of the hole in the ozone layer above Antarctica, since this is an indicator of global ultra-violet radiation levels.

第二个重要的地方是检查南极洲上空臭氧层空洞的大小，因为它标志着全球紫外线的辐水平。

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。”

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

地球周围有一种的氧，名为“臭氧”（O3）。

High up in the atmosphere, ultraviolet radiation transformed oxygen into ozone and gave Earth a vital shield — the ozone layer.

在大气层的高处，紫外线辐将氧气转化为臭氧，为地球提供了一个至关重要的屏障——臭氧层。

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。

Right. So in this headline, it's saying that if nothing changes, if everything carries on the way that it is now, then the Earth's ozone layer — this protective shield — will have recovered by 2066.

没错。因此，在这个标题中，它说的是，如果什么都不改变，如果一切都照现在这样进行下去，那么地球的臭氧层——这个保护层——将在 2066 年恢复。

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.

氧气组成的臭氧层使人免受紫外线伤害。

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。

He shared the 1995 Nobel Prize for Chemistry for his research on the ozone issue.

他凭借臭氧研究获得1995年诺贝尔化奖。

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。

Ozone depletion relies on extremely cold temperatures.

臭氧消耗依赖于极冷的温度。

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。

This pays great dividends for everyone as it also serves to protect the ozone layer.

这对每个人都有好处，因为它还可以保护臭氧层。

Another way we are using float data is to help us to understand the mechanics of climate change, like global warming and ozone depletion.

另外，我们利用漂浮体数据帮助我们了解气候变化的运行方式，比如全球变暖和臭氧层空洞。

It goes up every morning at 11 o'clock and measures air temperature and the density of the ozone layer to an altitude of up to 30 kilometers.

它每天早晨11点上升，并测量高达30公里的气温和臭氧层的密度。