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-rw-r--r--man/PEC_sw_drainage_UK.Rd21
1 files changed, 15 insertions, 6 deletions
diff --git a/man/PEC_sw_drainage_UK.Rd b/man/PEC_sw_drainage_UK.Rd
index af020c6..b641114 100644
--- a/man/PEC_sw_drainage_UK.Rd
+++ b/man/PEC_sw_drainage_UK.Rd
@@ -2,6 +2,7 @@
% Please edit documentation in R/PEC_sw_drainage_UK.R
\name{PEC_sw_drainage_UK}
\alias{PEC_sw_drainage_UK}
+\alias{drainage_date_UK}
\title{Calculate initial predicted environmental concentrations in surface water due to drainage using the UK method}
\usage{
PEC_sw_drainage_UK(
@@ -13,6 +14,8 @@ PEC_sw_drainage_UK(
model = NULL,
model_parms = NULL
)
+
+drainage_date_UK(application_date)
}
\arguments{
\item{rate}{Application rate in g/ha or with a compatible unit specified
@@ -32,29 +35,35 @@ days or a time unit specified with the units package}
"DFOP", "HS", or "IORE", or an mkinmod object}
\item{model_parms}{A named numeric vector containing the model parameters}
+
+\item{application_date}{Application date}
}
\value{
The predicted concentration in surface water in µg/L
}
\description{
This implements the method specified in the UK data requirements handbook and was checked against the spreadsheet
-published on the CRC website. Degradation before the start of the drainage period is taken into account if
+published on the CRC website. Degradation between the end (30 April) and the start (1 October) of
+the drainage period is taken into account if
\code{latest_application} is specified and the degradation parameters are given either as a \code{soil_DT50} or a \code{model}.
}
\examples{
PEC_sw_drainage_UK(150, Koc = 100)
PEC_sw_drainage_UK(60, interception = 0.5, Koc = 550,
latest_application = "01 July", soil_DT50 = 200)
+drainage_date_UK("2023-07-10")
+drainage_date_UK("2020-12-01")
+drainage_date_UK(as.Date("2022-01-15"))
}
\references{
HSE's Chemicals Regulation Division (CRD) Active substance
PECsw calculations (for UK specific authorisation requests)
-\url{https://www.hse.gov.uk/pesticides/topics/pesticide-approvals/pesticides-registration/data-requirements-handbook/fate/active-substance-uk.htm}
-accessed 2019-09-27
+\url{https://www.hse.gov.uk/pesticides/data-requirements-handbook/fate/pecsw-sed-via-drainflow.htm}
+accessed 2026-02-13
-Drainage PECs Version 1.0 (2015) Spreadsheet published at
-\url{https://www.hse.gov.uk/pesticides/topics/pesticide-approvals/pesticides-registration/data-requirements-handbook/fate/pec-tools-2015/PEC\%20sw-sed\%20(drainage).xlsx}
-accessed 2019-09-27
+PECsw/sed spray drift and tier 1 drainflow calculator Version 2.1.1 (2025) Spreadsheet published at
+\url{https://www.hse.gov.uk/pesticides/assets/docs/PEC\%20sw-sed\%20(spraydrift).xlsx)}
+accessed 2026-02-13
}
\author{
Johannes Ranke

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