Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.06 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.239 mg/L

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
12 mg/L
Assessment factor:
1
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
1.08 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:
1 000
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential to cause toxic effects if accumulated (in higher organisms) via the food chain

Additional information

The PNEC derivation was as follows justified:

PNEC freshwater sediment:

K_(susp-water) = 4.55

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_freshwater sediment

= (K_(susp-water)/ RHO_(susp)) * PNEC_water * 1000

= (4.55/1150) * 0.596 * 1000

= 2.358 mg/kg wwt

= 10.85 mg/kg dw

PNEC marine water sediment:

K_(susp-water) = 4.55

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_marine water sediment

= (K_(susp-water)/ RHO_(susp)) * PNEC_marine water * 1000

= (4.55/1150) * 0.0596 * 1000

= 0.2358 mg/kg wwt

= 1.08 mg/kg dw

Conclusion on classification

Aquatic acute toxicity

96 h, LC50 (Oncorhynchus mykiss): 42 mg/L

48 h, EC50 (Daphnia magna): > 91 mg/L

72 h, ErC50 (Algae): 23.9 mg/L

72 h, NOEC (Algae): 5.956 mg/L

Aquatic chronic toxicity

21 d, NOEC (Oncorhynchus mykiss): 50 mg/L

21 d, NOEC (Daphnica mgna): 22.2 mg/L

Biodegradation: Readily biodegradable: 85 % (O2 consumption) after 28 days (OECD 301 F);

Classification according to CLP

Based on the data above, the substance has not to be classified for acute and chronic toxicity according to Regulation (EC) No 1272/2008 (CLP).