Registration Dossier
Registration Dossier
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EC number: 204-428-0 | CAS number: 120-82-1
Additional ecotoxological information
Administrative data
- Endpoint:
- additional ecotoxicological information
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- secondary literature
Data source
Referenceopen allclose all
- Reference Type:
- review article or handbook
- Title:
- 1,2,4-Trichlorbenzol - BUA-Stoffbericht 17 - (Dezember 1987) [Report in German]
- Author:
- Beratergremium für umweltrelevante Altstoffe (BUA)
- Year:
- 1 987
- Bibliographic source:
- Wissenschaftliche Verlagsgesellschaft VCH, Weinheim, ISSN: 0179-2601
- Reference Type:
- publication
- Title:
- Long-term Effects of 1,2,4-Trichlorobenzene on Freshwater Plankton in an Outdoor-Model-Ecosystem.
- Author:
- Lay, J. P. et al.
- Year:
- 1 985
- Bibliographic source:
- Bull. Environ. Contam. Toxicol. Vol. 34, No. 5, 761 - 769
- Reference Type:
- publication
- Title:
- Effects of 1,2,4-Trichlorobenzene on Estuarine Macrobenthic Communities Exposed via Water and Sediment.
- Author:
- Tagatz, M. E. et al.
- Year:
- 1 985
- Bibliographic source:
- Ecotox. Environ. Saf. 10, 351 - 360
Materials and methods
- GLP compliance:
- not specified
- Type of study / information:
- BUA report
Test material
- Reference substance name:
- 1,2,4-trichlorobenzene
- EC Number:
- 204-428-0
- EC Name:
- 1,2,4-trichlorobenzene
- Cas Number:
- 120-82-1
- Molecular formula:
- C6H3Cl3
- IUPAC Name:
- 1,2,4-trichlorobenzene
Constituent 1
Results and discussion
Any other information on results incl. tables
BUA report (1987):
In a model ecosystem with daphnids and different phytoplankton species effects of 1,2,4-TCB were reported over a study period of 5 weeks. 1,2,4-TCB was added once at the beginning in a concentration of 0,25 mg/l. Daphnia magna and Daphnia pulex showed significant more sensitivity in the tested natural ecosystem (90% - 100% mortality) than in laboratory studies (EC50 = 1.2 mg/l ¿ 21 mg/l). Phytoplankton didn¿t show significant effects compared to the control (Lay, 1985).
In a seawater ecosystem the lowest observed concentration of 1,2,4-TCB affecting the average number of individuals was 0.04 mg/l for molluscs, 0.4 mg/l for arthropods and 4 mg/l for annelids. When 1,2,4-TCB was exposed to the ecosystem via sediment the lowest concentrations effecting the average number of individuals were 0.1 mg/l for molluscs and echinoderms and 1 mg/l for arthropods and annelids (Tagatz et al., 1985).
Conclusion:
Ecosystems show effects at 0,04 mg/l (Tagatz et al., 1985) and above.
Applicant's summary and conclusion
- Executive summary:
BUA report (1987):
Ecosystems show effects at 0,04 mg/l (Tagatz et al., 1985) and above.
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