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Calculate predicted environmental concentrations in sediment from surface water concentrations

Source: R/PEC_sw_sed.R
PEC_sw_sed.Rd

The method 'percentage' is equivalent to what is used in the CRD spreadsheet PEC calculator

Usage

PEC_sw_sed(
  PEC_sw,
  percentage = 100,
  method = "percentage",
  sediment_depth = set_units(5, "cm"),
  water_depth = set_units(30, "cm"),
  sediment_density = set_units(1.3, "kg/L"),
  PEC_sed_units = c("µg/kg", "mg/kg")
)

Arguments

PEC_sw

Numeric vector or matrix of surface water concentrations in µg/L for which the corresponding sediment concentration is to be estimated

percentage

The percentage in sediment, used for the percentage method

method

The method used for the calculation

sediment_depth

Depth of the sediment layer

water_depth

Depth of the water body in cm

sediment_density

The density of the sediment in kg/L (equivalent to g/cm3)

PEC_sed_units

The units of the estimated sediment PEC value

Value

The predicted concentration in sediment

Author

Johannes Ranke

Examples

library(pfm)
library(units)
#> udunits database from /usr/share/xml/udunits/udunits2.xml
PEC_sw_sed(PEC_sw_drift(100, distances = 1), percentage = 50)
#> 2.130769 [µg/kg]