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Ecotoxicological information

Toxicity to soil microorganisms

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Description of key information

No inhibition in soil microflora activity was reported

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No data on toxicity of disulfiram to soil microorganisms (CAS No. 97-77-8) were available. Therefore, a conclusion based on analogue approach had to be drawn. The toxicity of tetramethylthiuram disulfide (CAS No. 137-26-8), substance structurally and composition related to tetraethylthiuram disulfide, to soil microorganisms was investigated in one study (Wachter, 2000). This test was conducted according to the BBA-Guideline for the Official Testing of Pesticides, Part VI, 1-1 (1990) under GLP conditions. Tetramethylthiuram disulfide was incubated in two different soil types for 90 days (soil 1) and 28 days (soil 2), and the effects on soil microflora activity recorded. At test termination, no significant effects on nitrogen turnover or short term respiration were detected.