现在这些分子被认为是南极洲海盐浮粒的主要来源。科学家们猜测它们可能是导致南极附近日出时对流臭氧层耗弱的主要原因。

They have recently been recognized as the dominant source of sea salt aerosol in Antarctica and scientists suspect they may be the main cause of tropospheric ozone depletion during the polar sunrise.

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就是那年，大坝的门户错误的打开，使得那些原本位于河流底部的有毒重金属层浮到了表面，她继续说道。

In that year "a defect at the dam opened the gates, making a toxic layer of hard metals deposited at the bottom of the river come up" to the surface, she said.

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它弥漫着一层永远都是硫化黄色的浓雾，微风里浮着的煤尘微粒让人窒息。

It's suffused with a thick smog that's a perpetual sulphur-yellow, and suffocated by motes of coal dust suspended in the breeze.

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