INPUT PARAMETERS
A
surface area of building(s) with leaking tanks inside (m2)
D
thickness of aquifer (m)
I
hydraulic gradient of the groundwater (dimensionless)
K
hydraulic conductivity of the aquifer (m/day)
log KOC
partitioning coefficient between water and organic carbon
M
amount of pesticide leaked from tanks (kg)
R
annual rainfall (m/year)
Q
discharge of well, spring or river (m3/year)
S
water solubility of the pesticide (kg/m3)
T
time since tanks started leaking (years)
V
water volume of lake, reservoir or pond (m3)
x
measured distance from storage facility to vulnerable object (m)
OUTPUT PARAMETERS
a
constant (dimensionless)
C0
concentration in soil moisture at storage facility (kg/m3)
Cl
concentration in groundwater at storage facility (kg/m3)
Cg
concentration in well, spring or river (kg/m3)
Cs
concentration in lake, reservoir or pond (kg/m3)
d relative distance from store to vulnerable object (dimensionless)
fg
dispersion factor for groundwater (dimensionless)
fs
dispersion factor for surface water (dimensionless)
L
annual load of pesticide (kg/year)
mg
mixing factor for groundwater (dimensionless)
ms
mixing factor for surface water (dimensionless)
q
specific groundwater discharge (m/year)
r
retardation factor (dimensionless)
s
horizontal distance travelled by the centre of mass of the dispersion front (m)
Be sure to use the correct dimensions!
