同时双酚a在低氧或者无氧的环境里都能分解。

BPA also breaks down in the environment where oxygen levels are either low or non-existent.

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首先，他们考虑了有毒的或者无氧的底部水流的季节性上升造成这种灾难的可能性。

First, they considered the possibility that seasonal upwellings of toxic or oxygen-poor bottom water were responsible.

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从甲酸盐中获取所需的能量是目前最简单的维持生命方式，虽然它依赖于无氧的环境。

Getting useful energy from formate is now the simplest way known for any life form to get its fuel, though it relies on the absence of oxygen.

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