Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.104 mg/L
Assessment factor:
1
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
13.7 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:
1 mg/kg soil dw
Assessment factor:
100
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Classification related key information

Biodegradation in water: Readily biodegradable: approximately 70 – 100% (CO2 evolution) in 28 days (ISO 14593)

Log Kow: Bioaccumulation in organisms is negligible, due to biotransformation and excretion of alcohol ethoxylates.

Acute toxicity:

- to Fish: LC50 (96h) = 5 – 7 mg/L for Oncorhynchus mykiss

- to Crustacea: EC50 (48h) = 2.5 mg/L for Daphnia magna

- to Algae: ECr50 (96h) = 1.4 mg/L for Selenastrum capricornutum

Chronic toxicity:

The risk assessment is based on alcohol ethoxylate specific QSARs.

- to Fish: EC20 (30d) = 1.86 mg/L Pimephales promelas

- to Crustacea: EC20 (21d) =2.11 mg/L for Daphnia magna

- to Algae: ECr20 (72h) = 1.978 mg/L Desmodesmus subspicatus

Classification justification according to CLP

Based on the data above, alcohol ethoxylate (C9-11, < 2.5 EO) is considered rapidly biodegradable. The acute aquatic toxicity L(E)C50 is > 1 mg/L for all trophic levels. Based on QSAR calculations the lowest expected long-term effect value is 1.86 mg/L Therefore, alcohol ethoxylate (C9-11, < 2.5 EO) needs not to be classified and labelled as environmental hazard according to the Regulation (EC) No. 1272/2008 (CLP) and the Regulation (EU) No. 286/2011 (2ndATP).

M-factor for acute aquatic toxicity: no classification for acute toxicity

M-factor for chronic aquatic toxicity: no classification for chronic toxicity

 

Classification justification according to DSD

Based on the data above, alcohol ethoxylate (C9-11, < 2.5 EO) is considered to have low potential for accumulation and is rapidly degradable. The acute aquatic toxicity L(E)C50 is > 1 mg/L for all trophic levels. Therefore alcohol ethoxylate (C9-11, < 2.5 EO) does not need to be classified according to the Directive 67/548/EEC.