Most people don't realize that they are breathing polluted air.

大多数人没有意识到自己正呼吸着污染了的空气。

《牛津词典》

Even if polluted air does not kill us, it can make us very sick.

即使污染的空气不会杀死我们，它也会使我们生重病。

youdao

He and his team found that breathing polluted air can reduce a person's education level by about one year.

他和他的团队发现，呼吸被污染的空气会使一个人的教育水平降低一年左右。

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Senator Nelson knew there was growing public concern about the country's polluted air, rivers and land.

VOA: special.2010.04.21

The long term effects of breathing polluted air are even more alarming.

VOA: standard.2010.08.04

"Traditional environmental risks are those that face largely the poor in China, risks like drinking water contaminated with infectious organisms or highly polluted indoor air from people burning wood or other dirty fuels inside homes without chimneys."

VOA: standard.2010.04.07

Typically, a public nuisance is just that: polluted air or water, say, or traffic.

ECONOMIST: Environmental risks

At a time when contaminated waterways and polluted air threatened too many of our communities, John H.

WHITEHOUSE: 2010 Presidential Medal of Freedom Ceremony

The problems of putrid water and polluted air are largely but not inevitably the result of rapid industrialisation and urbanisation.

ECONOMIST: Development and the environment