We don't know the composition of Mercury well.

我们一点也不知道水星成分。

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Chlorine atoms can reduce the lifetime of atmospheric mercury gas, as well as greenhouse gases such as methane.

氯原子可以减少大气中汞气体以及温室气体如甲烷的寿命。

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Thiomersal does not contain methyl mercury, which is a naturally-occurring compound and whose toxic effects on humans have been well studied.

硫柳汞不含有甲基汞，后者是一种自然产生的化合物，其对人类的有毒影响已得到充分的研究。

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When they break they release mercury vapours well in excess of safe limits.

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Larger fish such as shark, king mackerel, swordfish, and tilefish tend to be highest in mercury because they eat smaller fish and consume the mercury in them as well.

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In addition, Panasonic continues its commitment to the environment by improving the panel luminance efficiency, as well as producing mercury and lead free panels.

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