Registration Dossier
Registration Dossier
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EC number: 204-340-2 | CAS number: 119-64-2
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
In a bacterial test using Pseudomonas putida (Hüls, 1994) after exposure to 4 nominal concentrations of 50, 75, 100 and 150 mg/L during 5 hours, the EC10 was 16 mg/L and the EC50 was 402 mg/L (both obtained by extrapolation). In the article of Sikkema and de Bont (1991) the order of magnitude of the onset bacteria toxicity is confirmed. They found that among 32 different organisms that can biodegrade 1,2,3,4-tetrahydronaphthalene, the test substance was toxic at concentrations of 14.6 mg/L and higher for all strains.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 402 mg/L
- EC10 or NOEC for microorganisms:
- 16 mg/L
Additional information
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