Wildfires can cause a lot of smoke, which will pollute the air.

野火会产生大量的烟雾，这些烟雾会污染空气。

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But they can also pollute water and air.

但他们也能污染水和空气。

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We can pollute the air with acids, the rivers with sewage, the seas with oil.

我们会用酸污染空气，用污水污染河流，用石油污染海洋。

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But they can also pollute water and air.

VOA: special.2009.07.28

emissions that will continue to pollute the air and affect the earth's climate.

VOA: standard.2010.06.14

Critics, however, say the mining operation will destroy forests in the area, contaminate groundwater and pollute the air with chemical substances like lead, mercury and arsenic.

BBC: Arsonists attack Hellas gold mine in northern Greece

Coal handling certainly needs to be cleaned and cannot be allowed to pollute the air with particulates AT ALL. This will require technology, which we can perfect and then sell to other countries.

FORBES: How Much Energy Do Apple's Data Centers Get From Coal? [UPDATED]

Critics like Bruce Gagnon say air shows pollute the environment, waste money and glorify war.

WSJ: Dark clouds hang over air shows after budget cuts