Toxicity of Sodium Molybdate and Soldium Dichromate to Daphnia magna Straus Evaluated in Acute, Chronic, and Acetylcholinesterase Inhibition Tests

摘要

As a result of a widespread application in numerous industrial processes, chromium is a contaminant of many environmetnal systems. Chromium and their compounds are toxic to both invertbrates and vertebrates and, for this reason, there has been a serach for suitable and less toxic alternatives. Molybdenum compounds have been studied as alternative to chromium compounds for some industrial applications. The toxicity of chromium is well known but the effects of molybdenum and molybdenum mining on natural populations and communities of freshwater invertebrates have not often been stuided.