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Arsenic (As) is a widely distributed contaminant in soil and is toxic to plants, animals and humans. Many studies have explored the effects of As on various physiological and biochemical processes in soil fauna. However, there is no report on the effect of sodium arsenite on the behavior of soil fauna such as earthworms. In this study, two earthworm species, Metaphire californica and Eisenia fetida,...
Arsenic (As) is widely distributed in soil and is toxic to plants, animals and humans. In this study, earthworms (Eisenia fetida) were exposed to five concentrations of sodium arsenite (5, 10, 20, 40, and 80 mg As kg−1) in farm soils for 28 d. With increasing soil As(III) concentrations, As bioaccumulation in earthworms increased (maximum bioaccumulation factor 3.77), and levels of reactive oxygen...
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