% Generated by roxygen2: do not edit by hand % Please edit documentation in R/parent_solutions.R \name{FOMC.solution} \alias{FOMC.solution} \title{First-Order Multi-Compartment kinetics} \usage{ FOMC.solution(t, parent_0, alpha, beta) } \arguments{ \item{t}{Time.} \item{parent_0}{Starting value for the response variable at time zero.} \item{alpha}{Shape parameter determined by coefficient of variation of rate constant values.} \item{beta}{Location parameter.} } \value{ The value of the response variable at time \code{t}. } \description{ Function describing exponential decline from a defined starting value, with a decreasing rate constant. } \details{ The form given here differs slightly from the original reference by Gustafson and Holden (1990). The parameter \code{beta} corresponds to 1/beta in the original equation. } \note{ The solution of the FOMC kinetic model reduces to the \code{\link{SFO.solution}} for large values of \code{alpha} and \code{beta} with \eqn{k = \frac{\beta}{\alpha}}{k = beta/alpha}. } \examples{ plot(function(x) FOMC.solution(x, 100, 10, 2), 0, 2, ylim = c(0, 100)) } \references{ FOCUS (2006) \dQuote{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, \url{http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics} FOCUS (2014) \dQuote{Generic guidance for Estimating Persistence and Degradation Kinetics from Environmental Fate Studies on Pesticides in EU Registration} Report of the FOCUS Work Group on Degradation Kinetics, Version 1.1, 18 December 2014 \url{http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics} Gustafson DI and Holden LR (1990) Nonlinear pesticide dissipation in soil: A new model based on spatial variability. \emph{Environmental Science and Technology} \bold{24}, 1032-1038 } \seealso{ Other parent solutions: \code{\link{DFOP.solution}()}, \code{\link{HS.solution}()}, \code{\link{IORE.solution}()}, \code{\link{SFO.solution}()}, \code{\link{SFORB.solution}()}, \code{\link{logistic.solution}()} } \concept{parent solutions}