Traditional decking may use pressure-treated pine, which until this year was usually laced with toxic substances like arsenic.

传统的盖板可以使用压力处理的松树，直到今年，通常含有有毒物质，如砷。

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Some microbes like nothing better than to be nestled in a toxic sludge of heavy metals like zinc, arsenic and cadmium.

对于一些微生物而言，没有什么比生活在充满了锌、砷和镉之类的重金属的有毒淤泥中更加惬意的。

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And like coal ash produced today, the particles would have been loaded with toxic metals such as chromium and arsenic.

就像今天的煤灰一样，这些颗粒中可能也含有一些有毒金属，如铬和砷。

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Arsenic is like phosphorus. He takes those two facts, plus the courage to leave blanks, and this is what he gives us.

砷和磷很像，他记住了这两点，在加上敢于留空的勇气，这就是他给我们的。

麻省理工公开课 - 固态化学导论课程节选

These are things like arsenic, mercury, cadmium, lead, selenium.

NPR: Coal Ash May Pose Health Hazard

Critics, however, say the mining operation will destroy forests in the area, contaminate groundwater and pollute the air with chemical substances like lead, mercury and arsenic.

BBC: Arsonists attack Hellas gold mine in northern Greece

More proof that seemingly earth-shaking findings (like, say, bacteria with arsenic in their DNA) are often not true but will make you wish Douglas Adams was around to write about them.

FORBES: No Virginia, There Are No Faster Than Light Neutrinos