Question

2. Substances with high log Kow values (ie, > 4.5 tend to adsorb more readily to organic matter in soils or sediments because of their low affinity for water, have the potential to bio-concentrate in living organisms. Calculate the concentration of pyrene in the lipid of certain fish, if the log Kow for pyrene is 5.13 and the concentration in water of pyrene is 0.1 mg/L

Answer 1

Given,

log Kow = 5.13

Concentration in water pyrene = 0.1mg/L

Concentration of pyrene in lipid =?

KOW = concentration in lipid / concentration in water

log 5.13 = concentration in lipid / 0.1

concentration in lipid = 0.7101 x 0.1

= 0.071