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Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
4.22 mg/L
Assessment factor:
10

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
5.57 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:
8.95 µg/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) = 3.765

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_freshwater sediment

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

= (3.765/1150) * 3.7 * 1000

 

PNEC marine water sediment:

K_(susp-water) = 3.765

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_marine water sediment

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

= (3.765/1150) * 0.37 * 1000

 

PNEC soil:

K_(soil-water) = 3.638

RHO_(soil) = 1700

Conversion factor (wwt -> dwt): 1.13

PNEC_soil

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

= (3.638/1700) * 3.7 * 1000

Conclusion on classification

Classification related key information

- Biodegradation: readily biodegradable: 82.74 % after 28 d (OECD 301F)

- Bioaccumulation: log Pow: 3.33 at 40 °C (OECD 117, HPLC method)

 

Aquatic acute toxicity

For fish: 96 h, LC50: 4.522 mg/L (QSAR prediction, ECOSAR v1.11, EPI Suite v4.11)

For aquatic invertebrates: 48 h, EC50 (Daphnia magna, OECD 202): 10 mg/L (mean measured)

For algae/aquatic plant: 48 h, ErC50 (Pseudokirchneriella subcapitata, OECD 201): 3.7 mg/L (mean measured)

 

Aquatic chronic toxicity

For fish: no data available

For aquatic invertebrates: no data available

For algae/aquatic plant: 48 h, ErC10 (Pseudokirchneriella subcapitata, OECD 201): 0.12 mg/L (mean measured)

The available data are reliable and suitable for classification purposes under Regulation (EC) No 1272/2008. Based on the data above, the substance is considered to be readily biodegradable.

The acute aquatic toxicity EC50 values are >1 mg/L for fish, aquatic invertebrates and algae. The most sensitive test for the aquatic compartment was the toxicity test to algae. Based on these results, the substance is not to be classified as short term (acute) aquatic toxicity but has to be classified as Chronic category 3 for long-term aquatic toxicity according to Regulation (EC) No 1272/2008 (CLP), as amended for the fourteenth time in Commission Regulation (EU) 2019/521.

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