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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Description of key information

There is no data for the bioaccumulation or Kow of 2-methylbutane, so this valuehas been read across from n-pentane as it has the most protective value within the category. The BCF of n-pentane was calculated as 171 based on a log Kow of 3.45.

Key value for chemical safety assessment

BCF (aquatic species):
171

Additional information

There is no data for the bioaccumulation or Kow of 2-methylbutane, so this value has been read across from n-pentane as it has the most protective value within the category. The QSAR used to calculate the BCF of n-pentane followed the TGD guideline and is considered appropriate to estimate the potential bioconcentration of n-pentane. The calculated BCF of 171 indicates that n-pentane and thus 2 -methylbutane has a low potential to bioaccumulate in the lipids of ecological receptors.