Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.022 mg/L
Assessment factor:
10
PNEC freshwater (intermittent releases):
0.17 mg/L

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
1 mg/L
Assessment factor:
100

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.012 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:
0.011 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Based on the NOEC value 0.225 mg/l from the 21 day Chronic Daphina Study and Unoxol 3 ,4 Dialdehyde being readily biodegradable, this will lead to chronic aquatic category 3 classification. For the acute aquatic endpoint, the LC50 values are between 10-100 mg/l for all the three trophic levels (26 mg/L [96 -hour LC50 values for carp], 89 mg/L [48 -hour EC50 value forD. magna], and 17 mg/L [72-hour EC50 based on growth rate for S. capricornutum]which results in an acute aquatic category 3 for GHS. 

The crude grade material of Unoxol 3 ,4 Dialdehyde contains up to 6% heptane resulting in an classification of chronic aquatic category 2 for the "Crude" as heptane is classified as Acute Aquatic 1 and Chronic Aquatic 1.