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:
no data: aquatic toxicity unlikely

Sediment (freshwater)

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Sediment (marine water)

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Due to the poor water solubility aquatic test animals will not be significantly exposed in an aquatic toxicity test. Therefore it is proposed to waive these tests and a PNECaquatic has not been derived. For the derivation of a PNEC for benthic organisms as well as for sediment organisms, no data are currently available.

Based on the available data on water solubility and the toxicity of the potentially solved elements, it is concluded that P-slag does not need to be classified for the environment. This implies that an assessment of the environmental exposure is not required.

Conclusion on classification

For the classification of P-slag the approach developed for poorly soluble inorganic metal compounds is applied as described in the CLP-Guidance (p.486 onwards). The results obtained in the Dissolution/transformation test show that at the three loadings in the test: 1, 10 and 100 mg/l after 7 days the levels of relevant ions did not exceed the conservatively established upper levels of the EC50 values for the ions. Following the decission scheme in the CLP Guidance Annex VI, figure IV.5.1 The answer to the first question :

L(E)C50 of soluble metal ion > 100 mg/l : YES results in the decision that no classification for environmental hazards is needed.