NAFTA_SOP_Attachment: Example datasets from Attachment 1 to the NAFTA SOP published...

Description Usage Format Source Examples

Description

Data taken from from Attachment 1 of the SOP.

Usage

1

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

1
2
3
  nafta_att_p5a <- nafta(NAFTA_SOP_Attachment[["p5a"]], cores = 1)
  print(nafta_att_p5a)
  plot(nafta_att_p5a)

Example output

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
Warning message:
In summary.mkinfit(x) :
  Could not estimate covariance matrix; singular system.
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 1.10e-21 92.121 99.5597
k_parent_sink   0.0102 1.71e-12  0.009  0.0117

$IORE
                    Estimate   Pr(>t)    Lower    Upper
parent_0            1.01e+02 2.37e-26 9.89e+01 1.03e+02
k__iore_parent_sink 1.54e-05 8.73e-02 3.48e-06 6.85e-05
N_parent            2.57e+00 1.14e-11 2.22e+00 2.92e+00

$DFOP
         Estimate   Pr(>t) Lower Upper
parent_0 9.99e+01 4.33e-27    NA    NA
k1       2.67e-02 3.17e-05    NA    NA
k2       4.03e-12 5.00e-01    NA    NA
g        6.47e-01 2.13e-05    NA    NA


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 3.13e+11 1.72e+11

Representative half-life:
[1] 321.5119

mkin documentation built on Sept. 15, 2021, 5:06 p.m.