Aerobic soil degradation data on 2,4-D from the EU assessment in 2014

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The five datasets were extracted from the active substance evaluation dossier -published by EFSA. Kinetic evaluations shown for these datasets are intended -to illustrate and advance kinetic modelling. The fact that these data and -some results are shown here does not imply a license to use them in the -context of pesticide registrations, as the use of the data may be -constrained by data protection regulations.

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D24_2014

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Format

An mkindsg object grouping five datasets

Source

Hellenic Ministry of Rural Development and Agriculture (2014) -Final addendum to the Renewal Assessment Report - public version - 2,4-D -Volume 3 Annex B.8 Fate and behaviour in the environment -https://open.efsa.europa.eu/study-inventory/EFSA-Q-2013-00811

Details

Data for the first dataset are from p. 685. Data for the other four -datasets were used in the preprocessed versions given in the kinetics -section (p. 761ff.), with the exception of residues smaller than 1 for DCP -in the soil from Site I2, where the values given on p. 694 were used.

The R code used to create this data object is installed with this package -in the 'dataset_generation' directory. In the code, page numbers are given for -specific pieces of information in the comments.

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Examples

print(D24_2014)
-#> <mkindsg> holding 5 mkinds objects
-#> Title $title:  Aerobic soil degradation data on 2,4-D from the EU assessment in 2014 
-#> Occurrence of observed compounds $observed_n:
-#> D24 DCP DCA 
-#>   5   4   4 
-#> Time normalisation factors $f_time_norm:
-#> [1] 1.6062378 0.7118732 0.7156063 0.7156063 0.8977124
-#> Meta information $meta:
-#>                                 study usda_soil_type study_moisture_ref_type
-#> Mississippi                Cohen 1991      Silt loam                    <NA>
-#> Fayette     Liu and Adelfinskaya 2011      Silt loam                     pF1
-#> RefSol 03-G Liu and Adelfinskaya 2011           Loam                     pF1
-#> Site E1     Liu and Adelfinskaya 2011           Loam                     pF1
-#> Site I2     Liu and Adelfinskaya 2011     Loamy sand                     pF1
-#>             rel_moisture temperature
-#> Mississippi           NA          25
-#> Fayette              0.5          20
-#> RefSol 03-G          0.5          20
-#> Site E1              0.5          20
-#> Site I2              0.5          20
-# \dontrun{
-print(D24_2014$ds[[1]], data = TRUE)
-#> <mkinds> with $title:  Mississippi 
-#> Observed compounds $observed:  D24 
-#> Sampling times $sampling_times:
-#> 0, 2, 4, 7, 15, 24, 35, 56, 71, 114, 183, 273, 365 
-#> With a maximum of  1  replicates
-#>    time  D24
-#> 1     0 96.8
-#> 2     2 81.0
-#> 3     4 81.7
-#> 4     7 88.2
-#> 5    15 66.3
-#> 6    24 72.9
-#> 7    35 62.6
-#> 8    56 54.6
-#> 9    71 35.2
-#> 10  114 18.0
-#> 11  183 11.3
-#> 12  273  9.9
-#> 13  365  6.3
-m_D24 = mkinmod(D24 = mkinsub("SFO", to = "DCP"),
-  DCP = mkinsub("SFO", to = "DCA"),
-  DCA = mkinsub("SFO"))
-#> Temporary DLL for differentials generated and loaded
-print(m_D24)
-#> <mkinmod> model generated with
-#> Use of formation fractions $use_of_ff: max 
-#> Specification $spec:
-#> $D24
-#> $type: SFO; $to: DCP; $sink: TRUE
-#> $DCP
-#> $type: SFO; $to: DCA; $sink: TRUE
-#> $DCA
-#> $type: SFO; $sink: TRUE
-#> Coefficient matrix $coefmat available
-#> Compiled model $cf available
-#> Differential equations:
-#> d_D24/dt = - k_D24 * D24
-#> d_DCP/dt = + f_D24_to_DCP * k_D24 * D24 - k_DCP * DCP
-#> d_DCA/dt = + f_DCP_to_DCA * k_DCP * DCP - k_DCA * DCA
-m_D24_2 = mkinmod(D24 = mkinsub("DFOP", to = "DCP"),
-  DCP = mkinsub("SFO", to = "DCA"),
-  DCA = mkinsub("SFO"))
-#> Temporary DLL for differentials generated and loaded
-print(m_D24_2)
-#> <mkinmod> model generated with
-#> Use of formation fractions $use_of_ff: max 
-#> Specification $spec:
-#> $D24
-#> $type: DFOP; $to: DCP; $sink: TRUE
-#> $DCP
-#> $type: SFO; $to: DCA; $sink: TRUE
-#> $DCA
-#> $type: SFO; $sink: TRUE
-#> Compiled model $cf available
-#> Differential equations:
-#> d_D24/dt = - ((k1 * g * exp(-k1 * time) + k2 * (1 - g) * exp(-k2 *
-#>            time)) / (g * exp(-k1 * time) + (1 - g) * exp(-k2 * time)))
-#>            * D24
-#> d_DCP/dt = + f_D24_to_DCP * ((k1 * g * exp(-k1 * time) + k2 * (1 - g) *
-#>            exp(-k2 * time)) / (g * exp(-k1 * time) + (1 - g) * exp(-k2
-#>            * time))) * D24 - k_DCP * DCP
-#> d_DCA/dt = + f_DCP_to_DCA * k_DCP * DCP - k_DCA * DCA
-# }
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