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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Description of key information

log BCF = 0.5  

BCF= 3.162 L/Kg wet

Key value for chemical safety assessment

BCF (aquatic species):
3.162 L/kg ww

Additional information

According to Column 2, Annex IX (specific rules for adaptation) the study does not need to be conducted since the substance has a low potential for bioaccumulation (logKow<3). A calculated value for risk assessment has been reported.

The BCFBAF method classifies a compound as either ionic or non-ionic.  

Ionic compounds include carboxylic acids, sulfonic acids and salts of sulfonic acids, and charged nitrogen compounds (nitrogen with a +5 valence such as quaternary ammonium compounds).  All other compounds are classified as non-ionic.

Training Dataset Included:

466 Non-Ionic Compounds

61 Ionic Compounds (carboxylic acids, sulfonic acids, quats)

Ionic compounds are predicted as follows (experimental Log Kow 0.3)

log BCF  =  0.50    (log Kow  <  5.0)

log BCF  =  1.00    (log Kow  5.0 to 6.0)

log BCF  =  1.75    (log Kow  6.0 to 8.0)

log BCF  =  1.00    (log Kow  8.0 to 9.0)

log BCF  =  0.50    (log Kow   >  9.0)