Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
11.4 µg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
5.7 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
1.1 µg/L
Assessment factor:
500
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
5 mg/L
Assessment factor:
20
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
1 140 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
114 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:
228 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
222 mg/kg food

Additional information

The water solubility has been selected as starting point for the risk assessment. The assessment factors are based on the presence of short-term tests on three trophic levels and the availability of long-term studies in daphnia and algae. For PNECs for soil and sediment the equilibrium partitioning method has been used with K- values based on the logKoc of 6.0 (maximum value in EUSES). The PNEC for secondary poisoning is based on the NOAEL from the 90-day oral toxicity study with a factor of 90 to extrapolate from a sub chronic to chronic exposure.

Conclusion on classification

In none of the acute aquatic toxicity tests performed on fish, daphnia and algae, an LC50 or EC50 could be achieved within limits of solubility. In the daphnia reproduction the NOELR is 100 mg/L. In presence of adequate data on chronic toxicity and based on the fact that the substance is not rapidly biodegradable, no classification of the substance for acute and/or chronic aquatic toxicity according to CLP (Regulation EC No 1272/2008) is considered.