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Ecotoxicological Summary

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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.004 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

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

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

Air

Hazard assessment conclusion:
no hazard identified

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

PNECaqua (freshwater), PNECaqua (marine water) were derived based on the NOEC of 36 µg/L from de Roode & de Haan (2004). The PNECaqua (intermittent release) has been determined based on the EC50 of 39 µg/L from Bouwman (2010b). The standard assessment factors given in the European Chemicals Agency guidance document (R.10: Characterisation of dose [concentration]-response for environment) have been used to predict the PNEC values.

PNECstp has been derived based upon the Baumann, 1992, study which provided a EC50 result of >100 mg/l. As it is not possible to derive a PNEC value from a greater than value, expert judgement has been applied and an EC50 value of 100mg/l is therefore considered the worst case for toxicity to microorganisms. The standard assessment factors given in the European Chemicals Agency guidance document (R.10: Characterisation of dose [concentration]-response for environment) have been used to predict the PNEC values.

PNECsediment and PNECsoil values cannot be derived at the current time due to a lack of physical chemical information (Koc, solubility and vapour pressure).

PNEC oral is not derived as the substance has been demonstrated to be non bioaccumulative.

Conclusion on classification