我们镇上的工业污染应该已经把学生们变成了活生生的科学实验品，他们每天都要吸入相当于实验室含量的锰、铬和镍等重金属。
Industrial pollution in our town had supposedly turned students into living science experiments breathing in a laboratory's worth of heavy metals like manganese, chromium and nickel each day.
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。
And like coal ash produced today, the particles would have been loaded with toxic metals such as chromium and arsenic.
如同所有的电视一样，液晶显示器的塑料外壳经过溴化阻燃剂处理，内部线路用了各种有毒重金属，如镉，铬，锑，铍。
As with all TVs, LCDs have plastic shells treated with brominated flame retardants and wiring that has various toxic heavy metals such as cadmium, chromium, antimony and beryllium.
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