Smoke is a mixture of gases, vaporized chemicals, minute particles of ash, and other solids. There is also nicotine, which is a powerful poison, and black tar.

抽烟产生的烟雾是一种混合的气体，包括气化的化学物质，极小的灰末微粒和其它固体，还有毒性很强的尼古丁和黑焦油。

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Such ash is less likely to poison water if the body of water is large, as then it can dilute any heavy metals in the ash.

如果水体广阔的话，这样的火山灰是不大可能污染水流的，因为它可以稀释火山灰里的重金属。

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