Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.002 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.16

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.022 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:
0.034 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) = 3.43

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_freshwater sediment

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

= (3.43/1150)*0.016*1000

= 0.0477 mg/kg wwt

= 0.22 mg/kg dw

PNEC marine water sediment:

K_(susp-water) = 3.43

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_marine water sediment

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

= (3.43/1150)* 0.0016 * 1000

= 0.00477 mg/kg wwt

= 0.022 mg/kg dw

PNEC soil:

K_(soil-water) = 3.24

RHO_(soil) = 1700

Conversion factor (wwt -> dwt): 1.13

PNEC_soil

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

= (3.24/1700)*0.016*1000

= 0.0305 mg/kg wwt

= 0.034 mg/kg dw

Conclusion on classification

Aquatic acute toxicity

96h, LC50 (Danio rerio): 16.1 mg/L (nominal)

48 h, EC50 (Daphnia magna): 117 mg/L (nominal)

72 h, EC10 (Algae): 47.4 mg/L (measured), EC50: 61.9 mg/L

Biodegradation: Readily biodegradable: 75 % (O2 consumption) after 28 days (OECD 301 D)

log Kow = 1.91  at 21.9 °C

log Koc = 2.00 at 25°C

Classification according to CLP

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