研究表明，大部分砷以无机形式即氧化物砷酸盐和亚砷酸盐存在，人们通过饮水的方式摄入而患病。
Much of the arsenic found in these studies is in an inorganic form — the oxides arsenate and arsenite — known to sicken people exposed via drinking water.
含铁的亚砷酸盐和硫酸盐也是新近的关注点并且可以证明对使砷稳定有用。
Ferric arsenite sulfate is also of recent interest and may prove to be useful in stabilizing arsenic.
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