Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.598 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
5.98 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.06 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.27 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:
0.197 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

No toxic effects were observed at the highest tested doses on fishes and invertebrates resulted on LC50/96h > 100.3 mg/L a.i. and EC50/48h > 96 mg/L a.i. respectively. A 72 hours test on algae led to an EC50 = 598 mg/L a.i. and an EC10 = 262 mg/L a.i.

A log Kow of 1.57 was found by the HPLC method and indicates a low potential for bioaccumulation in absence of BCF data.

The substance was only degraded by 14% in a ready biodegradation study but by analogy with 2,2-dimethyl-1,3-dioxolan-4-ylmethanol, the substance can be considered as inherently biodegradable.

Thus the substance is not classified for environmental hazards according to CLP regulation and DSD directive.