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sci.bioaccumulation-factor Calculator
Calculates the bioaccumulation factor (BAF) and biomagnification across trophic levels from lipid content and chemical log Kow. PCBs magnify ~10× per trophic level — by the time they reach apex predators like orcas, concentrations can be 10 million times higher than in the water.
Inputs
Organism Concentration Ug Kg
Amount of solute per unit volume. Higher concentration = more solute dissolved.
Water Concentration Ug L
Amount of solute per unit volume. Higher concentration = more solute dissolved.
Food Concentration Ug Kg
Amount of solute per unit volume. Higher concentration = more solute dissolved.
Diet Fraction
Reference formula or conversion factor shown for context.
Results
bioconcentration factor BCF
A dimensionless multiplier applied in the calculation.
biota-sediment factor BSAF
A dimensionless multiplier applied in the calculation.
biomagnification factor BMF
A dimensionless multiplier applied in the calculation.
BCF = Corganism / Cwater
The value at the specified point or condition.
BCF interpretation
Qualitative summary of what the computed numbers mean in practical terms.
log Kow > 5
Reference formula or conversion factor shown for context.