Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.004 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

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

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.32 mg/kg soil dw
Assessment factor:
100
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
0.067 g/kg food
Assessment factor:
90

Additional information

Conclusion on classification

Isononyl benzaote is readily biodegradable and was tested for potential toxicity towards aquatic organisms in fish (acute and chronic toxicity), daphnia (acute and chronic toxicity) and algae (acute/chronic toxicity). The test item is poorly soluble in water and in the acute toxicity studies no adverse effects on the exposed organisms were recorded up to the solubility limit. In the reproduction test with invertebrates (daphnia), no motrality or adverse effects on reproduction rate were observed. The NOEC (21 d) was >= 0.078 mg/L and constitutes the limit of solubility of the test substance under the test coniditions. In the chronic fish toxicity study (Zebra fish early life stage, 28 days post hatch), significant effects at the nominal dosage level 0.25 mg/L were observed and a overall NOEC of of 0.125 mg/L (nominal) and 0.0428 mg/L (mean measured) has been derived. Therefore, the test substance needs to be classified as toxic to aquatic organisms with long lasting effects, category 2 (H411) according to CLP and UN-GHS regulation.