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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Reference
Endpoint:
bioaccumulation: aquatic / sediment
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Qualifier:
no guideline followed
Principles of method if other than guideline:
Not specified
GLP compliance:
not specified
Type:
BCF
Value:
0.6 dimensionless
Basis:
not specified
Conclusions:
The BCF for methylal, estimated from its octanol/water partition coefficient, 0.00, using a recommended regression equation (Lyman et al., 1990) is 0.6 (SRC). Therefore, methylal should not bioconcentrate in fish and aquatic organisms.
This information is peer reviewed in HSDB.
Executive summary:

The BCF for methylal, estimated from its octanol/water partition coefficient, 0.00, using a recommended regression equation (Lyman et al., 1990) is 0.6 (SRC). Therefore, methylal should not bioconcentrate in fish and aquatic organisms.

This information is peer reviewed in HSDB.

Description of key information

According to Annex IX in REACH regulation, for susbtance with a Kow value < 3, no study needs to be conducted. With a log Kow of 0.0, this condition is fulfilled for methylal. Methylal BCF was estimated at 0.6 with BCFBAF Programm (v3.00).

Methylal should not bioconcentrate in fish and aquatic organisms.

Key value for chemical safety assessment

BCF (aquatic species):
0.6 dimensionless

Additional information

Methylal log BCF was estimated at 0.6 and 0.5 from Lyman et al. (1982) recommended regression equation (using log Kow of 0.00) and BCFBAF Programm (v3.00), respectively. Therefore, methylal should not bioconcentrate in fish and aquatic organisms.