Function describing exponential decline from a defined starting value.
Usage
SFO(t, parent.0, k)
Arguments
t
Time.
parent.0
Starting value for the response variable at time zero.
k
Kinetic constant.
Value
The value of the response variable at time t.
References
FOCUS (2006) Guidance Document on Estimating Persistence and
Degradation Kinetics from Environmental Fate Studies on Pesticides in EU
Registration Report of the FOCUS Work Group on Degradation Kinetics,
EC Document Reference Sanco/10058/2005 version 2.0, 434 pp,
http://focus.jrc.ec.europa.eu/dk