Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0 mg/L
Assessment factor:
100
PNEC freshwater (intermittent releases):
0.014 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
1 000

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
no exposure of sediment expected

Sediment (marine water)

Hazard assessment conclusion:
no exposure of sediment expected

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no exposure of soil expected

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Based on available reliable data for toxicity of constituent category substance of LCAs, including 2-butyloctanol, short-term acute toxicity (LC50or EC50) to aquatic organisms is >0.01 mg/L and does not meet the definitive ecotoxicity criterion according to the ECHA guidance on PBT assessment (Part C). Chronic data on aquatic species are not available for 2-butyloctanol but are available for the structural analogue, but it is concluded that long-term effects are unlikely due to the ready biodegradability of 2-butyloctanol and therefore the criteria of Annex XIII REACH for aquatic toxicity are not fulfilled.

2 -butyloctanol is classified for the environment based on acute toxicity data for fish and invertebrates being below 1 mg/L. However, the substance is considered to be readily biodegradable and unlikely to bioaccumulate, resulting in classification of acute category 1.