Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 30 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 300 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 3 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 30 µg/L
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 80.9 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 8.09 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:
- 16.2 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 23.33 mg/kg food
- Assessment factor:
- 300
Additional information
Due to the complex nature of the test item, for test media for investigations of short-term aquatic toxicity were prepared as a Water Accommodated Fractions (WAFs). PNECs have been calculated based onmean measured WAF loading rates and immobility datafor the most sensitive species (Daphnia).
Conclusion on classification
The test item is not classified as acutely toxic to the environment because the LL50 value determined using mean measured loading rates for the most sensitive species (Daphnia) was > 1 mg/L. However, the substance is not readily biodegradable, water solubility is relatively high (3.1 g/L) and Log Kow was determined to range from unretained (less than -1.02) to ≥ 4 (upper value reported 4.65). These data indicate some concern for the environment and, since long-term toxicity data are available for only one trophic level (algae), aquatic toxicity results should be assessed in terms of substances for which adequate chronic toxicity data are available and substances for which adequate chronic toxicity data are not available. The most stringent classification outcome is then applied. Based on the EL50 value of 30 mg/L determined from mean measured loading rates for Daphnia magna, classification as H412: Aquatic Chronic 3 is applicable when the result is compared to criteria given by Regulation (EC) No 1272/2008 (2nd ATP; 10 March 2011) for non-rapidly biodegradable substances for which adequate toxicity data are not available.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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