<<<<<<< HEAD Calculate initial predicted environmental concentrations in surface water due to drainage using the UK method — PEC_sw_drainage_UK • pfm

Calculate initial predicted environmental concentrations in surface water due to drainage using the UK method

======= Calculate initial predicted environmental concentrations in surface water due to drainage using the UK method — PEC_sw_drainage_UK • pfm Skip to contents

Calculate initial predicted environmental concentrations in surface water due to drainage using the UK method

Source: R/PEC_sw_drainage_UK.R
PEC_sw_drainage_UK.Rd

This implements the method specified in the UK data requirements handbook and was checked against the spreadsheet published on the CRC website

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Usage

>>>>>>> refs/remotes/origin/main 
PEC_sw_drainage_UK(
  rate,
  interception = 0,
  Koc,
  latest_application = NULL,
  soil_DT50 = NULL,
  model = NULL,
  model_parms = NULL
)
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Arguments

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Arguments

>>>>>>> refs/remotes/origin/main
rate

Application rate in g/ha

interception

The fraction of the application rate that does not reach the soil

Koc

The sorption coefficient normalised to organic carbon in L/kg

latest_application

Latest application date, formatted as e.g. "01 July"

soil_DT50

Soil degradation half-life, if SFO kinetics are to be used

model

The soil degradation model to be used. Either one of "FOMC", "DFOP", "HS", or "IORE", or an mkinmod object

model_parms

A named numeric vector containing the model parameters

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Value

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Value

>>>>>>> refs/remotes/origin/main

The predicted concentration in surface water in µg/L

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References

HSE's Chemicals Regulation Division (CRD) Active substance PECsw calculations (for UK specific authorisation requests) https://www.hse.gov.uk/pesticides/topics/pesticide-approvals/pesticides-registration/data-requirements-handbook/fate/active-substance-uk.htm accessed 2019-09-27

Drainage PECs Version 1.0 (2015) Spreadsheet published at 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

Author

Johannes Ranke

Examples

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References

HSE's Chemicals Regulation Division (CRD) Active substance PECsw calculations (for UK specific authorisation requests) https://www.hse.gov.uk/pesticides/topics/pesticide-approvals/pesticides-registration/data-requirements-handbook/fate/active-substance-uk.htm accessed 2019-09-27

Drainage PECs Version 1.0 (2015) Spreadsheet published at 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

Author

Johannes Ranke

Examples

>>>>>>> refs/remotes/origin/main 
PEC_sw_drainage_UK(150, Koc = 100)
#> [1] 8.076923
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Developed by Johannes Ranke.

Site built with pkgdown 2.0.7.

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