Actual and maximum moving window time average concentrations for SFO kinetics

Actual and maximum moving window time average concentrations for SFO kinetics

SFO_actual_twa(DT50 = 1000, times = c(0, 1, 2, 4, 7, 14, 21, 28, 42, 50, 100))

Arguments

DT50

The half-life.
times

The output times, and window sizes for time weighted average concentrations

Source

FOCUS (2014) Generic Guidance for Estimating Persistence and Degradation Kinetics from Environmental Fate Studies on Pesticides in EU Registration, Version 1.1, 18 December 2014, p. 251

Examples

SFO_actual_twa(10)
#>           actual       twa
#> 0   1.0000000000       NaN
#> 1   0.9330329915 0.9661297
#> 2   0.8705505633 0.9337803
#> 4   0.7578582833 0.8733416
#> 7   0.6155722067 0.7923030
#> 14  0.3789291416 0.6400113
#> 21  0.2332582479 0.5267498
#> 28  0.1435872944 0.4412651
#> 42  0.0544094102 0.3248093
#> 50  0.0312500000 0.2795222
#> 100 0.0009765625 0.1441286