Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
3.5 µg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.35 µg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
no hazard identified

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.7 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:
1.45 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

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

Additional information

Conclusion on classification

According to reliable short term studies conducted on fish, invertebrates and algae the 1,6 -Divinylperfluorohexane is not acutely toxic to aquatic organisms.

However 1,6 -Divinylperfluorohexane is not ready biodegradable, it has a partition coefficient Log Kow > 4 and it is poorly soluble in water as the solubility in pure water was found just slightly above 1 mg/L and the maximum concentrations achieved in ecotoxicological testing were all below 1 mg/L.

Basing on these parameters it fulfills the criteria to be classified in Aquatic Chronic Category 4 according to CLP and GHS criteria.