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:
- 0.25 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.12 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.025 mg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 315.6 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 31.56 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:
- 62.79 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 freshwater, marine waters, and intermittent release was derived based on the data on acute aquatic toxicity and on chronic aquatic toxicity where available following the REACH guidance. If combination of studies with confirmed EC50 values or NOECs/EC10 and limit tests was available for one taxonomic groups, preference was given to the data with confirmed (no) effect concentrations. In the absence of a confirmed (no) effect concentration from testing of one of species of the three trophic levels, the lowest confirmed (no) effect concentration of the other species was used to derive the PNEC.
Conclusion on classification
There were no effects observed up to 100 mg/l (nominal) in any acute aquatic toxicity testing. These results do not warrant classsification according to GHS EU implementation.
Preliminary PBT Assessment
An assessment of the PBT status of the substance has been made using all available data. The information available suggests that the substance does not meet the PBT screening criteria.
Persistence Assessment
Biodegradation in water was tested in two screening studies according to OECD 301F (ready biodegradability) and OECD 302B (inherent biodegradability). The substance showed 22% biodegradability in the first test (Brixham Environmental Laboratory, 2009) and 84% biodegradability in the second test (Brixham Environmental Laboratory, 2010) . Although the substance is classified as "not ready biodegradable", it exhibits inherent (primary) biodegradability, and therefore is not expected to persist indefinitely in the environment. The substance is identified as not P according to the PBT screening criteria.
Bioaccumulation Assessment
In the absence of a measured BCF value, the log KOW can be used as a screening criterion for bioaccumulative potential (i.e. >4.5). As the log KOW of the substance is below 4.5, the B/vB criterion is not met. Therefore the substance is identified as not B.
Toxicity Assessment
The acute effect information for all three trophic levels is much higher than the screening criterion of 0.1 mg/l. It can therefore be expected that the substance is not toxic towards aquatic organisms.
Summary and Overall Conclusions on PBT or vPvB Properties
The overall conclusions, based on the present available data, of the preliminary PBT assessment are that the (screening) criteria for PBT/vPvB are not met and that further testing in the scope of the final PBT assessment is not considered to be required.
Emission Characterisation
The substance is not a PBT/vPvB substance, therefore the emission characterisation does not need to be conducted.
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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