Registration Dossier
Registration Dossier
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EC number: 206-376-4 | CAS number: 334-48-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.02 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.15 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.002 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.015 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 912 mg/L
- Assessment factor:
- 1
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.937 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.094 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:
- 0.176 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Classification related key information (based on current available data)
Degradation:
- Biodegradation: readily biodegradable: 62 – 105 % after 30 d (O2 consumption, OECD 301 D); RA CAS 124-07-2, CAS 143-07-7
Bioaccumulation:
- Log Pow = 4.1
Aquatic acute toxicity:
- Fish: LC50 (96 h) = 18.9 mg/L (nominal, Lepomis macrochirus)
- Aquatic invertebrates: EC50 (48 h) > 21 mg/L (meas. geom. mean, mobility of Daphnia magna, OECD 202)
- Algae: ErC50 (72 h) = 15 mg/L (nominal, growth rate, OECD 201)
Aquatic chronic toxicity:
- Fish: NOEC (28 d) = 6.4 mg/L (nominal, growth rate of Danio rerio, OECD 305 E); RA CAS 629-25-4
- Aquatic invertebrates: NOEC (21 d) = 0.2 mg/L (nominal, reproduction rate of Daphnia magna, OECD 211)
- Algae: NOErC (72 h) = 3.2 mg/L (nominal, growth rate, OECD 201)
Conclusion on classification
A harmonized classification towards environmental hazard was adopted for decanoic acid. According to the regulation (EC) No 1272/2008, Annex VI, Table 3.1 the substance is classified as hazardous to the aquatic environment, aquatic chronic 3: harmful to aquatic life with long lasting effects (H412). This corresponds with the available data presented in this dossier, a further self classification is not needed.
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