1975/01/01 by David L. Johnson, Michael E. Q. Pilson · 1 citation
Environmental Science · #Environmental Toxicology and Ecotoxicology #Water Quality Monitoring and Analysis #Water Quality and Pollution Assessment
paper · doi:10.1080/00139307509437429
openalex publication_date 1975/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
The oxidation rate of arsenite in seawater is very slow. Of the parameters investigated which might affect this rate the most important were temperature, initial arsenite concentration, salinity and pH. An empirical rate expression was developed from experimental data which led to a prediction that the natural rate of oxidation in the ocean is about 0.023 micromoles of As(III) per liter each year. This value is about twice the natural concentration of arsenite; the only mechanism which seems able to account for the continued presence of arsenite is biological reduction of arsenate.