About Us | Help Videos | Contact Us | Subscriptions

Journal of Environmental Quality Abstract -

The Oxidation of Arsenite by Aquatic Sediments1


This article in JEQ

  1. Vol. 9 No. 4, p. 700-703
    Received: Dec 18, 1979

Request Permissions

  1. D. W. Oscarson,
  2. P. M. Huang and
  3. W. K. Liaw2



Sediments from five lakes in southern Saskatchewan, Canada, oxidize As(III) (arsenite) to As(V) (arsenate). The oxidation is not affected by flushing N2 or air through the sediment suspensions, nor does the addition of HgCl2 to the system eliminate the conversion of As(III) to As(V). The oxidation is an abiotic process with microorganisms playing a relatively minor role in this system. Because As(III) is more toxic and sorbed to a lesser extent by sediments than As(V), the suspended and bottom sediments may potentially alleviate the toxicity of As(III) through abiotic oxidation in aquatic environments.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .