Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

Marine water

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
no hazard identified

Sediment (marine water)

Hazard assessment conclusion:
no hazard identified

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no hazard identified

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Rangefinder studies showed no toxicity at nominal concentrations up to 10 mg L-1 (highest concentration tested). Analytical monitoring of both the organic ligand and platinum showed very low concentrations of platinum and the organic ligand could be detected in solution. As the test item is very poorly soluble and it was not possible to get more of the test item into solution, aquatic toxicity is not expected at the limit of solubility and this was demonstrated in the rangefinding studies. Definitive ecotoxicity tests were therefore not conducted for this substance.

Conclusion on classification

Based on the results from solubility trials it is concluded that neither the organic ligand nor the platinum component of Karstedt concentrate will enter solution in high enough amounts to lead to aquatic toxicity. This is supported by the results of the rangefinder studies conducted with three trophic levels at a highest nominal concentration of 10 mg L-1. As it is not possible to get more of the test item in solution, conducting definitive ecotoxicity studies is not considered to be necessary. To conclude on environmental classification the standard approach would be to test up to a nominal concentration of 100 mg L-1. However, for this substance testing at a nominal concentration of 100 mg L-1 is considered to be unnecessary, as the limit of solubility appears to have been reached at the nominal concentration of 10 mg L-1, and testing at higher concentrations would not lead to additional test item in solution. As no toxicity was observed at the limit of solubility in the rangefinder studies, neither an acute or chronic environmental classification is considered to be required for the substance.