Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
1.3 µg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
13 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.13 µg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
9.35 µg/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:
17.89 µg/kg soil dw
Extrapolation method:
equilibrium partitioning method

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) = 17.99

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_freshwater sediment

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

= (17.99/1150) * 1.3 * 1000

 

PNEC marine water sediment:

K_(susp-water) = 17.99

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_marine water sediment

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

= (17.99/1150) * 0.13 * 1000

 

PNEC soil:

K_(soil-water) = 20.7

RHO_(soil) = 1700

Conversion factor (wwt -> dwt): 1.13

PNEC_soil

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

= (20.7/1700) * 1.3 * 1000

Conclusion on classification

Classification related key information

- Biodegradation: Readily biodegradable: 88 % after 28 days (OECD 310)

- Bioaccumulation: log Pow 3.9 (OECD 117)

Aquatic acute toxicity

- Aquatic invertebrates: EC50 (48 h) = 7.6 mg/L (arithmetic mean, Daphnia magna, OECD 202)

- Algae: ErC50 (72 h) = 3.1 mg/L (geometric mean, Pseudokirchneriella subcapitata, OECD 201)

- Fish: LC50 (96 h) = 1.3 mg/L (arithmetic mean, Danio rerio, OECD 203)

Aquatic chronic toxicity

- Algae: ErC10 (72 h) = 1.4 mg/L (geometric mean, Pseudokirchneriella subcapitata, OECD 201)

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, as amended for the tenth time in Regulation (EC) No 2017/776.