Registration Dossier

Ecotoxicological information

Ecotoxicological Summary

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Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.137 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
1.37 mg/L

Marine water

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

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
14 176.5 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
1 417.7 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:
120.3 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
33.3 mg/kg food
Assessment factor:
30

Additional information

In the assessment of the ecotoxicity of this bismuth substance, a read-across approach has been used based on all information available for bismuth compounds. This grouping of bismuth compounds is based on the assumption that properties are likely to be similar or follow a similar pattern as a result of the presence of the common bismuth moiety. For most metal-containing compounds, it is the potentially bioavailable metal ion that is the moiety of toxicological concern. The ecotoxicity results selected for read-across among bismuth substances are all based on bismuth subnitrate, dibismuth trioxide or bismuth metal powder.

Conclusion on classification

The results triggered no classification under the Dangerous Substance Directive (67/548/EEC) and the CLP Regulation (EC No 1272/2008). No classification for environmental effects is therefore required.

 

The substance is therefore proposed to be “not classified” and appropriate comments are detailed within Section 2 of the registration dossier.