Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
125 µg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
26 µg/L

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
49.6 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:
84.5 µg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Daphnia is the most sensitive species in acute and chronic aquatic ecotoxicity tests. Therefore the PNEC freshwater is derived from the chronic NOEC 21d Daphnia of 1.25 mg/L.

Conclusion on classification

All acute and chronic aquatic toxicity values L(E)C50 for the registration are >1 mg/Land the lowest chronic value is the NOEC reproduction (21d) daphnia of 1.25 mg/L. As the acute LC50 (96h) fish is 100 mg/l it is justified to assume that the chronic fish NOEC would be >1.25 mg/L (usual chronic to acute ratio is 1:10). In addition fish is the least sensitive species. With this assumption three chronic values (all NOEC > 1mg/L) would be the basis for the environmental classification under CLP 2nd ATP 2011/286/EC.

The registration substance is not readily biodegradable and not bioaccumulative (log Kow = 3,6, low BCF see IUCLID Chapter 5.3).

Short-term effects

Proposed classification according DSD 67/548/EEC:

no classification required as lowest acute EC50 is > 1 mg/L

Proposed classification according CLP (2nd) ATP 2011/286/EC:

no classification required as lowest acute EC50 is > 1 mg/L

Long-term (chronic) effects

Proposed classification according DSD 67/548/EEC:

classification required as the lowest acute toxicity value is EC50 (48h) Daphnia = 2.6 mg/L and the registration substance is not readily biodegradable: R51/53.

Proposed classification according CLP (2nd) ATP 2011/286/EC:

no classification required as lowest chronic value NOEC reproduction (21d) daphnia is > 1 mg/L.