Registration Dossier
Registration Dossier
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EC number: 401-700-2 | CAS number: 3100-36-5 CYCLOHEXADECENON; CYCLOHEXADECENONE
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.28 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 2.75 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.028 µg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 100 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 339.1 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 33.91 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:
- 3.7 mg/kg soil dw
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Biodegradation:
- Readily biodegradable (72-74% after 28 d, OECD301B)
Bioaccumulation:
- BCF: 244 (according to 67/548/EEC method C.13 (1998)
Acute toxicity:
- Aquatic Invertebrates: EC50 (48 h) = 0.275 mg/L (D. magna, OECD 202)
- Algae: ErC50 (72 h) = 0.47 mg/L (P. subcapitata, OECD 201)
Chronic toxicity:
- Aquatic invertebrates: NOEC (21 d) = 0.0141mg/L (D. magna, OECD 211).
- Algae: NOEC (72 h) = 0.119 mg/L (P. subcapitata, OECD 201)
Classification according to CLP
Aquatic acute test results are available for three trophic levels (fish, aquatic invertebrates and algae). Chronic toxicity data are available for two trophic levels for aquatic invertebrates and algae. The substance is readily degradable in the environment and has a low potential for bioaccumulation (BCF = 244). Aquatic invertebrates were found to be the most sensitive species in short term aquatic studies with an EC50 (48 h) of 0.275 mg/L. The lowest long-term effect value was also determined for aquatic invertebrates with a NOEC (21 d) of 0.0141 mg/L. Thus, the substance needs to be classified and labeled as “Aquatic Acute 1” (H400) and “Aquatic Chronic 2” (H411) according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs).
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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