Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.004 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.036 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.036 mg/L

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
0.1 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.008 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:
0.014 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

The PNEC derivation was as follows justified:

PNEC freshwater sediment:

K_(susp-water) = 5.56

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_freshwater sediment

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

= (5.56/1150) * 0.00359 * 1000

= 0.0173 mg/kg wwt

= 0.0798 mg/kg dw

PNEC marine water sediment:

K_(susp-water) = 5.56

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_marine water sediment

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

= (5.56/1150) * 0.000359 * 1000

= 0.00173 mg/kg wwt

= 0.00798 mg/kg dw

PNEC soil:

K_(soil-water) = 5.79

RHO_(soil) = 1700

Conversion factor (wwt -> dwt): 1.13

PNEC_soil

= (K_(soil-water) / RHO_(soil)) * PNEC_freshwater * 1000

= (5.79/1700) * 0.00359 * 1000

= 0.0122 mg/kg wwt

= 0.0138 mg/kg dw

Conclusion on classification

Aquatic acute toxicity:

96 -h LC50 (Fish) = 3.59 mg/L (measured)

48 -h EC50 (Daphnia magna) = 5.4 mg/L (nominal)

72 -h EC50 (Algae) = 16.6 mg/L (measured)

Aquatic chronic toxicity

72 h, EC10 (Algae): 9.98 mg/L (measured)

Biodegradation:

Readily biodegradable: 72% of biodegrdation (maximum on day 21) according to OECD 301D

Classification and labelling:

Based on the current data, the test substance is not considered to be classified for acute or chronic toxicity according to Regulation (EC) No 1272/2008, as amended for the tenth time in Regulation (EC) No 2017/776.