In drought season lead-dust in atmosphere is larger than that in rainy season.

干旱多尘土季节大气中的铅尘大于雨季。

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The eruption has left a thin veil of dust in the upper atmosphere.

这次火山喷发在上层大气中留下了一个薄薄的尘土层。

《柯林斯英汉双解大词典》

Clouds are formed from the evaporation of the oceans' water that is warmed by the Sun and rises high into the atmosphere, condensing in tiny droplets on minute particles of dust.

云是由海洋中的水分被太阳加热蒸发而形成的，这些水分上升到大气中，凝结成微小的水滴，附着于微小的尘埃颗粒。

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Currently,the best explanation for the loss of methane is that it chemically reacts with dust in the atmosphere.

VOA: special.2009.12.30

"Dust in the atmosphere has a major role in shaping the climate on Mars, " said Manuel de la Torre Juarez of NASA's Jet Propulsion Laboratory in Pasadena, Calif.

ENGADGET: Curiosity rover finds radiation levels on Mars are safe for humans

Dust in the atmosphere warms it.

BBC: Dust-devils flirt with Curiosity Mars rover

What is new about Dr Cinzano's research, which is about to be published in the Monthly Notices of the Royal Astronomical Society, is that he and his colleagues have managed to take account of the effects of back-scattering by clouds and dust in the atmosphere, as well as the effects of the original sources of the light themselves.

ECONOMIST: Going, going, nearly gone