Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 266-028-2 | CAS number: 65996-93-2 The residue from the distillation of high temperature coal tar. A black solid with an approximate softening point from 30°C to 180°C (86°F to 356°F). Composed primarily of a complex mixture of three or more membered condensed ring aromatic hydrocarbons.
Toxicity to soil macroorganisms except arthropods
Administrative data
- Endpoint:
- toxicity to soil macroorganisms except arthropods: long-term
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study based on scientific standards, acceptable for assessment
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Reference
- Endpoint:
- toxicity to soil macroorganisms except arthropods: long-term
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study based on scientific standards, acceptable for assessment
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- Long-term terrestrial toxicity and reproduction test with annelids in laboratory test systems
- GLP compliance:
- no
- Specific details on test material used for the study:
- - no further information reported
- Analytical monitoring:
- not specified
- Test organisms (species):
- Enchytraeus sp.
- Animal group:
- annelids
- Study type:
- laboratory study
- Substrate type:
- artificial soil
- Limit test:
- no
- Total exposure duration:
- 30 d
- Key result
- Duration:
- 30 d
- Dose descriptor:
- EC10
- Effect conc.:
- 8.7 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Remarks:
- after aging of 1 month
- Basis for effect:
- reproduction
- Remarks on result:
- other: recalculated to a soil with 2 % organic carbon: EU 2008 - EU RAR 323 on coal-tar pitch, high temperature
- Details on results:
- At 40 µmoles BaP/kg soil dw (= ~ 10 mg/kg soil dw), the reproductive rate per parent was 89.9 ± 14.2 (n = 7) vs. 117.9 ± 16.5 cocons in the control. This concentration was assigned as "effective threshold concentration".
Data source
Reference
- Reference Type:
- publication
- Title:
- The effect of fluoranthene (Fla), benzo(a)pyrene (BaP) and cadmium (Cd) upon survival rate and life cycle parameter of two terrestrial annelids in laboratory test systems
- Author:
- Achazi RK, Chroszcz G, Duker C, Henneken M, Rothe B, Schaub K, Steudel I
- Year:
- 1 995
- Bibliographic source:
- Newslett. Enchytraeidae 4, 7-14
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- Long-term terrestrial toxicity and reproduction test with annelids in laboratory test systems
- GLP compliance:
- no
Test material
- Reference substance name:
- Benzo[def]chrysene
- EC Number:
- 200-028-5
- EC Name:
- Benzo[def]chrysene
- Cas Number:
- 50-32-8
- Molecular formula:
- C20H12
- IUPAC Name:
- benzo[pqr]tetraphene
- Test material form:
- solid
- Details on test material:
- - Substance type: organic
Phys.-chem. properties (data from EU 2008: Coal-Tar Pitch, high temperature - Risk Assessment. European Union Risk Assessment Report, The Netherlands, and WHO 1998: EHC 202)
- Vapour pressure: 7.3E-7 Pa (at 25 °C)
- Water solubility: in freshwater, approx. 1.5 - 3.8 µg/L (20 - 25 °C);
- Henry's law constant: 0.034 Pa*m³/mol (at 20 °C)
- log Pow: = 6.13 - 6.5
- pKa: not applicable
- Stability in water: limited due to photolytic decomposition and evaporation
- Stability in light: instable in the presence of UV
- pH dependance on stability: not applicable
Constituent 1
- Specific details on test material used for the study:
- - no further information reported
Sampling and analysis
- Analytical monitoring:
- not specified
Test organisms
- Test organisms (species):
- Eisenia fetida
- Animal group:
- annelids
Study design
- Study type:
- laboratory study
- Substrate type:
- artificial soil
- Limit test:
- no
- Total exposure duration:
- 30 d
Results and discussion
Effect concentrations
- Key result
- Duration:
- 30 d
- Dose descriptor:
- EC10
- Effect conc.:
- 2.6 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Remarks:
- after aging of 1 month
- Basis for effect:
- reproduction
- Remarks on result:
- other: recalculated to a soil with 2 % organic carbon: EU 2008 - EU RAR 323 on coal-tar pitch, high temperature
- Details on results:
- At 40 µmoles BaP/kg soil dw (= ~ 10 mg/kg soil dw), the survival rate was 49 ± 24 % (n = 7) vs. 100 % of the control. The reproduction rate was reduced to 0.28 ± 0.4 vs. 2.88 ± 1.49 cocoons/parent (n = 7).
Applicant's summary and conclusion
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
