Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.009 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.1 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.001 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:
94.3 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
9.43 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, 87% (O2 consumption) in 28 days (OECD 301F)

Bioaccumulation in organisms is negligible, due to biotransformation and excretion of alcohol ethoxylates

 

Acute toxicity:

- to Fish: LC50 (96h) = 108 mg/L for Danio rerio

- to Crustacea: EL50 (48h) = 51 mg/L for Daphnia magna

- to Algae: EL50 (72h) > 10 mg/L for Pseudokirchneriella subcapitata

 

Chronic toxicity:

The risk assessment is based on alcohol ethoxylate specific QSARs.

- to Fish: EC20 (30d) = 0.355 mg/L for Pimephales promelas

- to Crustacea: EC20 (21d) = 0.088 mg/L for Daphnia magna

- to Algae: ErC20 (72h) = 0.226 mg/L for Desmodesmus subspicatus

 

Classification justification according to CLP

Based on the data above, alcohol ethoxylate C16, <2.5EO (CAS 9004-95-9), is considered rapidly biodegradable. The acute aquatic toxicity L(E)C50 is > 1 mg/L. Based on QSAR calculations the lowest expected long-term effect value is 0.088 mg/L. Therefore, alcohol ethoxylate needs to be classified and labelled as environmental hazard Chronic Cat. 2 according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs). 

 

M-factor for acute aquatic toxicity: no factor assigned

M-factor for chronic aquatic toxicity: no factor assigned