Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

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

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
2.75 µg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
4.44 mg/kg food
Assessment factor:
90

Additional information

For details on calculation, please refer to the attachement.

Conclusion on classification

The lowest acute effect value is a 48-h EC50 of 1.41 mg/L observed for the effect of SymWhite 377 on the mobility of Daphnia magna. Thus, according to the Regulation (EC) 1272/2008, the substance SymWhite 377 does not need to be classified for acute (short -term) aquatic hazards because the lowest acute effect value is >= 1mg/L.

No chronic aquatic study is available at this point in time. According to the Regulation (EC) 1272/2008, for substances for which adequate chronic toxicity data are not available the classification for long-term effects should be determined based on the acute effects and the biodegradation and accumulation potential of the substance. Thus, SymWhite 377 has to be classified as aquatic chronic 2 (H411: Toxic to the aquatic life with long lasting effects) because the lowest acute effect concentration is between 1 and 10 mg/L and the substance is not readily biodegradable.

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