Registration Dossier
Registration Dossier
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EC number: 203-809-9 | CAS number: 110-86-1
Sediment toxicity
Administrative data
Link to relevant study record(s)
Description of key information
Waiver: Studies on effects on sediment organisms do not need to be conducted since the chemical safety assessment indicates that impacts to sediments are not a concern. Pyridine has a log Kow of 0.64 and a BCF of 3.162; each value is below the threshold of concern for adsorption of a substance to sediments.
Key value for chemical safety assessment
Additional information
Assessment of the long-term toxicity of pyridine in sediment is not required, since pyridine is unlikely to adsorb to sediments to a significant extent. A log Koc or log Kow value ≥ 3 is used as a trigger value for sediments effects assessment(Section R.7.8.7,Guidance on information requirements and chemical safety assessment,Chapter R.7B, Endpoint-specific guidance, May 2008). Both the log Koc (1.8557) and the log Kow (0.64) for pyridine are below the level of concern for potential adsorption to sediment.
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