Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
100 mg/L
Assessment factor:
1
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.165 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:
0.55 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
1.33 mg/kg food
Assessment factor:
300

Additional information

Formula for the calculation of PNECsed using the equilibrium partitioning approach for sediment:

PNEC(sed) = (Ksed-water x PNEC(aqua) / RHOsed) * 1000

PNEC(sed) Predicted No Effect Concentration in sediment [mg/kg, wet weight]

Ksusp-water partition coefficient sediment / water [4.85 m3/m3]

RHOsed bulk density of sediment matter [1150 kg/m3]

PNECaqua Predicted No Effect Concentration in water [as above]

Formula for the calculation of PNECsed using the equilibrium partitioning approach for soil:

PNEC(soil) = (Ksoil-water x PNEC(aqua) / RHOsoil) * 1000

PNEC(soil) Predicted No Effect Concentration in sediment [mg/kg, wet weight]

Ksoil-water partition coefficient sediment / water [9.75 m3/m3]

RHOsoil bulk density of soil matter [1700 kg/m3]

PNECaqua Predicted No Effect Concentration in water [as above]

Conclusion on classification

The substance is not readily biodegradable. The acute toxicity is moderate with LD50/EC50 values consistently in the range 1 -10mg/l. On this basis classification as toxic to the environment appears to be justified as Chronic category 2: H411 under regulation 1272/2008.