Example datasets from Attachment 1 to the NAFTA SOP published 2015
NAFTA_SOP_Attachment.RdData taken from from Attachment 1 of the SOP.
Format
A list (NAFTA_SOP_Attachment) containing 16 datasets suitable
for the evaluation with nafta
Source
NAFTA (2011) Guidance for evaluating and calculating degradation kinetics in environmental media. NAFTA Technical Working Group on Pesticides https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/guidance-evaluating-and-calculating-degradation accessed 2019-02-22
US EPA (2015) Standard Operating Procedure for Using the NAFTA Guidance to Calculate Representative Half-life Values and Characterizing Pesticide Degradation https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/standard-operating-procedure-using-nafta-guidance
Examples
nafta_att_p5a <- nafta(NAFTA_SOP_Attachment[["p5a"]], cores = 1)
#> The SFO model is rejected as S_SFO is equal or higher than the critical value S_c
#> The half-life obtained from the IORE model may be used
print(nafta_att_p5a)
#> Sums of squares:
#> SFO IORE DFOP
#> 465.21753 56.27506 32.06401
#>
#> Critical sum of squares for checking the SFO model:
#> [1] 64.4304
#>
#> Parameters:
#> $SFO
#> Estimate Pr(>t) Lower Upper
#> parent_0 95.8401 4.67e-21 92.245 99.4357
#> k_parent 0.0102 3.92e-12 0.009 0.0117
#> sigma 4.8230 3.81e-06 3.214 6.4318
#>
#> $IORE
#> Estimate Pr(>t) Lower Upper
#> parent_0 1.01e+02 NA 9.91e+01 1.02e+02
#> k__iore_parent 1.54e-05 NA 4.08e-06 5.84e-05
#> N_parent 2.57e+00 NA 2.25e+00 2.89e+00
#> sigma 1.68e+00 NA 1.12e+00 2.24e+00
#>
#> $DFOP
#> Estimate Pr(>t) Lower Upper
#> parent_0 9.99e+01 1.41e-26 98.8116 101.0810
#> k1 2.67e-02 5.05e-06 0.0243 0.0295
#> k2 3.41e-12 5.00e-01 0.0000 Inf
#> g 6.47e-01 3.67e-06 0.6248 0.6677
#> sigma 1.27e+00 8.91e-06 0.8395 1.6929
#>
#>
#> DTx values:
#> DT50 DT90 DT50_rep
#> SFO 67.7 2.25e+02 6.77e+01
#> IORE 58.2 1.07e+03 3.22e+02
#> DFOP 55.5 3.70e+11 2.03e+11
#>
#> Representative half-life:
#> [1] 321.51
plot(nafta_att_p5a)
