read.TOXSWA_cwa: Read TOXSWA surface water concentrations

In jranke/pfm: Utilities for Pesticide Fate Modelling

Read TOXSWA surface water concentrations

Description

Read TOXSWA hourly concentrations of a chemical substance in a specific segment of a TOXSWA surface water body. Per default, the data for the last segment are imported. As TOXSWA 4 reports the values at the end of the hour (ConLiqWatLayCur) in its summary file, we use this value as well instead of the hourly averages (ConLiqWatLay). In TOXSWA 5.5.3 this variable was renamed to ConLiqWatLay in the out file.

Usage

read.TOXSWA_cwa(
  filename,
  basedir = ".",
  zipfile = NULL,
  segment = "last",
  substance = "parent",
  total = FALSE,
  windows = NULL,
  thresholds = NULL
)

Arguments

filename	The filename of the cwa file (TOXSWA 2.x.y or similar) or the out file when using FOCUS TOXSWA 4 (i.e. TOXSWA 4.4.2) or higher.
basedir	The path to the directory where the cwa file resides.
zipfile	Optional path to a zip file containing the cwa file.
segment	The segment for which the data should be read. Either "last", or the segment number.
substance	For .out files, the default value "parent" leads to reading concentrations of the parent compound. Alternatively, the substance of interested can be selected by its code name.
total	Set this to TRUE in order to read total concentrations as well. This is only necessary for .out files as generated by TOXSWA 4.4.2 or similar, not for .cwa files. For .cwa files, the total concentration is always read as well.
windows	Numeric vector of width of moving windows in days, for calculating maximum time weighted average concentrations and areas under the curve.
thresholds	Numeric vector of threshold concentrations in µg/L for generating event statistics.

Value

An instance of an R6 object of class TOXSWA_cwa.

Author(s)

Johannes Ranke

Examples

H_sw_D4_pond  <- read.TOXSWA_cwa("00001p_pa.cwa",
                                 basedir = "SwashProjects/project_H_sw/TOXSWA",
                                 zipfile = system.file("testdata/SwashProjects.zip",
                                                       package = "pfm"))

jranke/pfm documentation built on Nov. 17, 2024, 6:42 a.m.