Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

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:
0.031 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.003 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:
0.006 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Additional information

Conclusion on classification

Classification related key information

Biodegradation in water: screening test: 53% (O2-consumption) in 28 days (ISO Draft – BOD Test for Insoluble Substances)

QSAR (BIOWIN v.4.00) = readily biodegradable

Log Kow: 4.00 (KOWWIN v.1.67)

Acute toxicity:

- to Fish: LC50 (96 h) = 1.27 – 2.68 mg/L based on QSAR calculations

- to Aquatic invertebrates: L(E)C50 (48 h) = 0.91 - 2.15 mg/L based on QSAR-calculations

- to Algae: ErC50 (72 h / 96 h) = 0.66; ErC50 (96 h) = 1.27 mg/L based on QSAR-calculations

Chronic toxicity:

- to Fish: not available

- to Aquatic invertebrates: not available

- to Algae: not available

 

Classification justification according to CLP

Based on the data above, 1,7 -octadiene is considered to have moderate potential for bioaccumulation (cut-off value for log Pow = 4.0) and is rapidly degradable. The acute aquatic toxicity L(E)C50 is < 1 mg/L for algae. Valid chronic aquatic toxicity data are not available. 1,7 -octadiene has been classified and labelled as environmental hazard Acute Cat. 1 and Chronic Cat. 1 according to the Regulation (EC) No.1272/2008 (CLP) and the Regulation (EU) No. 286/2011 (2ndATP).

 

M-factor for acute aquatic toxicity: not need to be assigned

M-factor for chronic aquatic toxicity: not possible due to absence of chronic data

 

Classification justification according to DSD

Based on the data above, 1,7 -octadiene is considered to have a moderate potential for bioaccumulation (cut-off value for log Pow = 3.0) but is rapidly degradable. The acute aquatic toxicity L(E)C50 is < 1 mg/L for algae. Therefore 1,7 -octadiene has been classified and labelled as environmental hazard R50/53 according to the Directive 67/548/EEC.