Registration Dossier
Registration Dossier
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EC number: 915-372-8 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.008 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.077 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.077 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 100 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.04 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.004 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:
- 0.003 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) = 1.27
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_freshwater sediment
= (K_(susp-water)/ RHO_(susp))*PNEC_water * 1000
= (1.27/1150)* 0.008 *1000
= 0.009 mg/kg wwt
= 0.040 mg/kg dw
PNEC marine water sediment:
K_(susp-water) = 1.27
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_marine water sediment
= (K_(susp-water)/ RHO_(susp))*PNEC_marine water* 1000
= (1.27/1150)*0.0008* 1000
= 0.0009 mg/kg wwt
= 0.004 mg/kg dw
PNEC soil:
K_(soil-water) = 0.65
RHO_(soil) = 1700
Conversion factor (wwt -> dwt): 1.13
PNEC_soil
= (K_(soil-water)/ RHO_(soil))*PNEC_freshwater* 1000
= (0.65/1700)*0.008* 1000
= 0.003 mg/kg wwt
= 0.003 mg/kg dw
Conclusion on classification
Classification, Labelling, and Packaging Regulation (EC) No 1272/2008
The available experimental test data are reliable and suitable for classification purposes under Regulation (EC) No 1272/2008. The test substance was found to be not readily biodegradable under the test conditions. The most sensitive test for the aquatic compartment was the short-term toxicity test to aquatic invertebrates. This study revealed a 48h-EC50 of 7.7 mg/L. In addition the toxicity of the test substance to the unicellular freshwater green alga Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata) was determined. After 72 hours the ErC10 was determined to be 15.50 mg/L and the ErC50 was determined to be 34.63 mg/L. Based on these results, the substance is not classified for aquatic acute toxicity and based on these results the substance is classified as aquatic chronic category 2 according to table 4.1.0 of Annex I of Regulation (EC) No 1272/2008 with H411: Toxic to aquatic life with long lasting effects, according to Regulation (EC) No 1272/2008 (CLP) as amended for the tenth time in Commision Regulation (EU) No 2017/776.
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