Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.15 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:
0.07 mg/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

Short-term effects

The EC50 (48h) Daphnia of 6.5 mg/L is the lowest acute ecotoxicity value available from three trophic levels. This means

no classification according DSD 67/548/EEC for Short-term effects

no classification according CLP 2011/286/EU (2nd ATP of CLP) for Short-term effects

Long-term effects

The 2nd ATP of CLP requires that the classification has to be based on 3 chronic values and if the substance is readily biodegradable or not. In cases where e.g. only two chronic values are available (as for SCG) an additional assessment based on acute ecotoxicity values and not readily biodegradable and/or bioaccumulative has to be carried out. The worst of both assessments will be the basis for the environmental classification.

a) Assessment approach based on chronic data

The lowest of the two chronic ecotoxicity value is the NOEC (21d) Daphnia of 4 mg/L. As SCG is readily biodegradable this means

no classificiation according 2nd ATP CLP

b) Assessment approach based on acute data

The lowest of three acute ecotoxicity values is 6.5 mg/L. SCG is readily biodegradable and not bioaccumulative. This means

no classification according DSD and 2nd ATP CLP (acute approach)

This means

no classification according DSD 67/548/EEC for Long-term effects

no classification according CLP 2011/286/EU (2nd ATP of CLP) for Long-term effects

OVERALL ENVIRONMENTAL CLASSIFICATION

No classification required for short-term and long-term effects under DSD 67/548/EEC as well as CLP 2011/286/EU (2nd ATP).