Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
6.48 µg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
64.8 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.648 µg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
10 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
2.392 µg/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:
1.13 µg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Based on the information available, the lowest EC50 value calculated from the acute aquatic toxicity studies = 6.48 mg/L. As the substance is inorganic, biodegradation results are not available, however, a study was conducted to investigate abiotic degradation which indicated that the substance was hydrolytically unstable at pH 4.0, 7.0 and 9.0 under the condition of the test. Although the results of the hydrolysis test shown that the test substance is predicted to be unstable in the environment, it does not meet the criteria of >70% abiotic degradation within 28 days at environmentally relevant temperatures for all enviromental relevant pH values. Therefore a conservative classification of Aquatic Chronic 2 (H411) is warranted in accordance with the CLP regulation (1272/2008EC, as amended).