Registration Dossier
Registration Dossier
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EC number: 209-909-9 | CAS number: 597-82-0
Endpoint summary
Administrative data
Description of key information
Experimental data on toxicity to soil organisms of two different trophic levels are available, which allow to conclude on long-term effects: Chronic toxicity to earthworms (OECD 222) and toxicity to soil microorganisms (OECD 216). In the long-term toxicity test with earthworms, adverse effects were observed resulting in an active ingredient recalculated 56d-EC10 value of 199.6 mg/kg soil dw based on 5% organic carbon content in soil. The toxicity test with soil microorganisms did not show effects in tested range of up to 1000 mg test substance /kg soil dw and 275.7 mg O,O,O-triphenyl phosphorothioate/kg soil dw, respectively. Since the test substance is adsorptive and poorly water soluble, uptake by plants is expected to be negligible and testing is not deemed necessary.
The results indicate a low toxicity of O,O,O-triphenyl phosphorothiate to terrestrial toxicity. The worst case EC10 of 199.6 mg/kg soil dw is considered to be a very conservative value for an environmental risk assessment.
Additional information
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