摘要
本文比较详细地综述了砷的化学特性，环境背景值及来源和循环，土壤中砷的三大化学平衡即沉淀溶解平衡，氧化还原平衡，吸附解吸平衡，以及微生物对砷的转化。
Chemical characteristics of arsenic, environmental background and sources and cycles of arsenic, chemical equilibria including precipitation dissolution, oxidation reduction, adsorption desorption of arsenic, as well as effects of microorganisms on arsenic transformation in soils were reviewed in detail.
关键词
土壤污染
砷
化学平衡
arsenic
soil
chemical equilibrium
precipitation
dissolution
oxidation
reduction
adsorption
desorption
toxicity
pollution.
