Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
no hazard identified

Marine water

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
100 mg/kg sediment dw
Assessment factor:
50
Extrapolation method:
assessment factor

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
10 mg/kg sediment dw
Assessment factor:
500
Extrapolation method:
assessment factor

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
156 mg/kg soil dw
Assessment factor:
10
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

PNEC aquatic values were not generated because testing indicates the substance has negligible solubility in water and is not toxic to 3 aquatic organisms. Negligible water concentrations are expected based on minimal partitioning to water in the environment and high binding to particulates with subsequent settling. No hazard was identified for water or air. The PNEC STP is 1 mg/L, based on a NOEC of 10 mg/kg sludge. The PNEC freshwater sediment is 100 mg/kg dw, based on 2 long term tests in sediment organisms, while the PNEC marine sediment is 10 mg/kg dw using these results. The PNEC soil is 156 mg/kg soil dw based on data in 3 trophic levels.

Conclusion on classification

Classification of DBDPEthane as an environment hazard is not justified.