Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.14 µg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.205 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.017 µg/L
Assessment factor:
500
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
0.125 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.261 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.026 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.005 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential to cause toxic effects if accumulated (in higher organisms) via the food chain

Additional information

Acute toxicity data are available for dihydrogen hexahydroxyplatinate, for Daphnia, algae and microorganisms. Data are read across from dihydrogen hexahydroxyplatinate, compound with 2-aminoethanol, another platinum(IV) substance without a chloro ligand, for acute toxicity to fish. These data are used to fulfil REACH endpoints and to determine environmental classification.

 

Aquatic PNECs for platinum(IV) substances are derived by pooling all available data for platinum(IV) substances and deriving the PNEC using an assessment factor approach based on the ecotoxicity data for the most toxic platinum(IV) substance as worst case. Sediment and terrestrial PNECs are derived using equilibrium partitioning.

Conclusion on classification

Environmental classification is assessed based on the lowest acute and chronic values from ecotoxicity tests performed with the substance itself. The lowest acute value is a 48 -hour EC50 of 0.742 mg test item L-1 (0.481 mg Pt L-1) for aquatic invertebrates(mobility) and the lowest chronic value is a 72-hour NOEC of 0.946 mg test item L-1 (0.613 mg Pt L-1) for algae (yield and growth rate). For this substance, the only chronic data available is an algal NOEC, therefore classification is assessed based on both the acute and chronic data and the worst case classification assigned to the substance. Based on these results, an environmental classification of Acute Category 1, Chronic Category 1 is assigned. As the lowest EC50 value is >0.1 ≤ 1 an acute M factor of 1 is assigned. A chronic M factor of 1 is also assigned, to match the acute M factor, as the classification has been determined based on acute data.