128
6 Risk Assessment and Management of Chemical Products
Fig. 6.12 Data inputs needed to estimate the regional or continental predicted environmental
concentration (PEC) in the different compartments of a mass-balance environmental fate model
proportional to the emission inflow and inversely proportional to the degradation
rate constant:
c
stst
=
Q emission
k deg × V
(6.21)
Fig. 6.13 Plot of concentration over time of a substance in a single compartment with only degradation according to Eq. 6.20 to reach a steady-state concentration (c stst ) of 10 g/m 3 . Parameters
used: k deg = 0.1 d
−1 , Q emission = 100 g/d, V = 100 m 3
6 Risk Assessment and Management of Chemical Products
Fig. 6.12 Data inputs needed to estimate the regional or continental predicted environmental
concentration (PEC) in the different compartments of a mass-balance environmental fate model
proportional to the emission inflow and inversely proportional to the degradation
rate constant:
c
stst
=
Q emission
k deg × V
(6.21)
Fig. 6.13 Plot of concentration over time of a substance in a single compartment with only degradation according to Eq. 6.20 to reach a steady-state concentration (c stst ) of 10 g/m 3 . Parameters
used: k deg = 0.1 d
−1 , Q emission = 100 g/d, V = 100 m 3