Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.011 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.003 mg/L

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.097 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:
0.408 mg/kg soil dw
Assessment factor:
50
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Both short and long-term toxicity tests for fish, algae and inverterbrates are available for the substance.

The 72h-EC50 for Artemia and 48h EC50 daphnia were 24.55 and 4.5 mg/L respectively. For algae a 72h-ErC50 of 13 mg/L was derived, while for fish a worst case 96h-LC50 of 2.8 (rainbow trout) was determined. Based on the lowest available acute data for fish being 2.8 mg/L, the substance does not need to be classified for acute aquatic toxicity according to Table 4.1.0 (a) of CLP.

As there is adequate chronic toxicity data available for all three trophic levels and the substance is readily biodegradable, long term toxicity can be derived according to Table 4.1.0(b)ii. Considering the lowest chronic value available from daphnia and fish with a NOEC of 1.1 mg/L and the ErC10 algae is above 1 mg/L, the substance does not need to be classified for long-term aquatic hazard based on the criteria outlined in the EU CLP (1272/2008/EC and its updates). M factor for the acute and chronic toxicity are therefore not applicable.