There's water and there's sulphur dioxide.

这是水分子，这是氧化硫分子。

And that sulphuric acid is made by sulphur dioxide coming out of volcanoes on the surface.

这些硫酸来源于氧化硫产生于地表火山。

But there was no incentive for the power plants to stop emitting sulphur dioxide.

但发电厂没有动力停止氧化硫。

The sulphur dioxide level in the air was 32 parts per billion.

【part】空气中氧化硫含量是十亿分之三十。

The rest of the gas is nitrogen, carbon dioxide, sulphur dioxide, methane, ammonia and hydrogen.

剩下气是氮气、氧化碳等气。

They're carrying devices that measure gases, especially sulphur dioxide, which can pose a danger to health and even be fatal.

他们携带测量气​​备，尤其是氧化硫， 这可能对健康构成威胁， 甚至是致命。

Fumigants such as hydrogen cyanide, sulphur dioxide and DDT itself are now regarded in most places as too toxic to use.

氰化氢、氧化硫和滴滴涕等熏蒸剂本身现在在大多数地方都被认为毒性太大而无法使用。

Gas-fired stations emit much less carbon dioxide, per unit of electricity, than coal, which also gives off all sorts of other nasties when burned, from sulphur dioxide to mercury.

生产同一单位电，燃气发电厂氧化碳比燃煤发电厂少。除此之外，煤在燃烧时也会产生各种有害气，包括氧化硫和汞。

Older volcanic rocks tend to emit less infrared, say the researchers, because carbon dioxide and sulphur dioxide in the planet's atmosphere weather the rocks and change their composition.

研究人员说，较旧火山岩往往发出较少红外线，因为氧化碳和氧化硫在地球大气中使岩石风化并改变它们成分。

For years, its power stations had been emitting large amounts of sulphur dioxide, which was falling back to Earth as acid rain, causing harm to plants, aquatic animals and infrastructure.

多年来，它发电站一直在大量氧化硫，这些氧化硫以酸雨形式回落到地球上，对植物、水生动物和基础施造成伤害。