Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.155 mg/L
Assessment factor:
1 000
PNEC freshwater (intermittent releases):
1.549 mg/L

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
160 mg/L
Assessment factor:
10

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.681 mg/kg sediment dw

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.069 mg/kg sediment dw

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.045 mg/kg soil dw

Hazard for predators

Additional information

The lowest acute effect concentration for the test substance is the 96-hour EC50 of 154.9 for algae. Since a full base set of acute aquatic test data is available, an assessment factor of 1000 is appropriate for calculation of a PNEC aqua-freshwater. The Predicted No Effect Concentration for surface water is PNECwater= 0.155 mg/L.

The PNEC aqua-marine water was derived from the freshwater base set of test using an AF of 10,000. The Predicted No Effect Concentration for marine water is  PNECaqua - marine water= 0.016 mg/L.

The PNECs for freshwater sediment, marine sediment, and soil were derived from the appropriate PNEC values, the Koc value for the dominant non-aqueous-phase constituent in the test substance (Koc = 7.8 mL/g) and appropriate equilibrium partitioning equations. 

The PNECSTPwas derived from the Pseudomonas study endpoint of > 1600 mg/L in conjunction with an AF of 10.

Based on a log Kow < 3.0, limited potential for exposure and bioaccumulation and lack of classification for toxicological effects in mammals, it was not considered useful to derive a PNECoral.

Conclusion on classification

Conclusive but insufficient for classification