Any accidental release of fluorine could also be an issue: fluorine is a toxic and corrosive gas and, at high concentrations, can retard plant growth and damage teeth and bones.

氟气的任一次意外泄漏也都可能造成问题。氟气是一种有毒的腐蚀性气体，而且，在高浓度时，能阻碍植物生长并，损伤牙齿和骨骼。

youdao

He also speculates that slime could protect bacteria from high levels of toxic gas.

他同时猜测粘液能够保护细菌免受有毒气体的侵害。

youdao

Even accounting for the new analysis, natural gas-which also emits less toxic and particulate pollution-offers a significant environmental advantage.

即便如此，天然气仍然以有毒物质少、颗粒污染物少的特征而具备显著的环境优势。

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"It could be hitting natural fractures that already exist." Fox notes that toxic gases like benzene,toluene and hexane also accompany natural gas extraction.

VOA: standard.2010.01.02

Chlorine gas, toxic to humans.

氯气有毒。

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Aside from its unpleasant odor, the toxic gas a natural byproduct of organic and inorganic wastes can corrode metal.

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Aside from its unpleasant odor, the toxic gas-a natural byproduct of organic and inorganic wastes-can corrode metal.

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In 2005 he put mice into hibernationlike states with small doses of the toxic gas hydrogen sulfide.

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