Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

LC50 96h Danio Rerio > 100 mg/l loading rate

EC50 48h Daphnia Magna > 100 mg/l loading rate

ErC50 72h Desmodesmus subspicatus  > 100 mg/l (loading rate)

EC50 3h activated sludge = 471 mg/l (loading rate)and NOEC = 31.6 mg/l (loading rate)

Additional information

Tetraphosphorus trisulphide is non-toxic to aquatic species at three trophic levels: fish, aquatic invertebrates and algae, as demonstrated by the results below.

 - LC50 96h Danio Rerio > 100 mg/l loading rate: experimental data obtained testing the substance according to OECD TG 203.

 - EC50 48h Daphnia Magna > 100 mg/l loading rate: experimental data obtained testing the substance according to OECD TG 202.

 - ErC50 72h Desmodesmus subspicatus  > 100 mg/l (loading rate): experimental data obtained testing the substance according to OECD TG 201.

Moreover, the substance was tested for activated sludge respiration inhibition according to OECD TG 209 and EC50 3h activated sludge = 471 mg/l (loading rate)and NOEC = 31.6 mg/l (loading rate) were the results of this test.