From ea9b75183bcf41fcdd6f61ec6060e94c4bc321a2 Mon Sep 17 00:00:00 2001 From: Johannes Ranke Date: Thu, 11 Jun 2015 12:13:47 +0200 Subject: Add simple drift PEC ini calculations These are tested for field crops with the CRD spreadsheet --- pkg/man/PEC_sw_drift.Rd | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 pkg/man/PEC_sw_drift.Rd (limited to 'pkg/man/PEC_sw_drift.Rd') diff --git a/pkg/man/PEC_sw_drift.Rd b/pkg/man/PEC_sw_drift.Rd new file mode 100644 index 0000000..20299a5 --- /dev/null +++ b/pkg/man/PEC_sw_drift.Rd @@ -0,0 +1,42 @@ +% Generated by roxygen2 (4.1.0.9001): do not edit by hand +% Please edit documentation in R/PEC_sw_drift.R +\name{PEC_sw_drift} +\alias{PEC_sw_drift} +\title{Calculate predicted environmental concentrations in surface water due to drift} +\usage{ +PEC_sw_drift(rate, applications = 1, water_depth = 30, drift_data = "JKI", + crop = "Ackerbau", distances = c(1, 5, 10, 20), rate_units = "g/ha", + PEC_units = "µg/L") +} +\arguments{ +\item{rate}{Application rate in units specified below} + +\item{applications}{Number of applications for selection of drift percentile} + +\item{water_depth}{Depth of the water body in cm} + +\item{drift_data}{Source of drift percentage data} + +\item{crop}{Crop name (use German names for JKI data), defaults to "Ackerbau"} + +\item{distances}{The distances in m for which to get PEC values} + +\item{rate_units}{Defaults to g/ha} + +\item{PEC_units}{Requested units for the calculated PEC. Only µg/L currently supported} +} +\value{ +The predicted concentration in surface water +} +\description{ +This is a basic, vectorised form of a simple calculation of a contaminant +concentration in surface water based on complete, instantaneous mixing +with input via spray drift. +} +\examples{ +PEC_sw_drift(100) +} +\author{ +Johannes Ranke +} + -- cgit v1.2.1