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<img src="" class="logo" alt=""><h1>Example datasets from the NAFTA SOP published 2015</h1>
<div class="d-none name"><code>NAFTA_SOP_2015.Rd</code></div>
</div>
<div class="ref-description section level2">
<p>Data taken from US EPA (2015), p. 19 and 23.</p>
</div>
<div class="section level2">
<h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
<div class="sourceCode"><pre class="sourceCode r"><code><span><span class="va">NAFTA_SOP_Appendix_B</span></span>
<span> <span class="va">NAFTA_SOP_Appendix_D</span></span></code></pre></div>
</div>
<div class="section level2">
<h2 id="format">Format<a class="anchor" aria-label="anchor" href="#format"></a></h2>
<p>2 datasets with observations on the following variables.</p><dl><dt><code>name</code></dt>
<dd><p>a factor containing the name of the observed variable</p></dd>
<dt><code>time</code></dt>
<dd><p>a numeric vector containing time points</p></dd>
<dt><code>value</code></dt>
<dd><p>a numeric vector containing concentrations</p></dd>
</dl></div>
<div class="section level2">
<h2 id="source">Source<a class="anchor" aria-label="anchor" href="#source"></a></h2>
<p>NAFTA (2011) Guidance for evaluating and calculating degradation kinetics
in environmental media. NAFTA Technical Working Group on Pesticides
<a href="https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/guidance-evaluating-and-calculating-degradation" class="external-link">https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/guidance-evaluating-and-calculating-degradation</a>
accessed 2019-02-22</p>
<p>US EPA (2015) Standard Operating Procedure for Using the NAFTA Guidance to
Calculate Representative Half-life Values and Characterizing Pesticide
Degradation
<a href="https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/standard-operating-procedure-using-nafta-guidance" class="external-link">https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/standard-operating-procedure-using-nafta-guidance</a></p>
</div>
<div class="section level2">
<h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
<div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span> <span class="va">nafta_evaluation</span> <span class="op"><-</span> <span class="fu"><a href="nafta.html">nafta</a></span><span class="op">(</span><span class="va">NAFTA_SOP_Appendix_D</span>, cores <span class="op">=</span> <span class="fl">1</span><span class="op">)</span></span></span>
<span class="r-msg co"><span class="r-pr">#></span> The SFO model is rejected as S_SFO is equal or higher than the critical value S_c</span>
<span class="r-msg co"><span class="r-pr">#></span> The representative half-life of the IORE model is longer than the one corresponding</span>
<span class="r-msg co"><span class="r-pr">#></span> to the terminal degradation rate found with the DFOP model.</span>
<span class="r-msg co"><span class="r-pr">#></span> The representative half-life obtained from the DFOP model may be used</span>
<span class="r-in"><span> <span class="fu"><a href="https://rdrr.io/r/base/print.html" class="external-link">print</a></span><span class="op">(</span><span class="va">nafta_evaluation</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#></span> Sums of squares:</span>
<span class="r-out co"><span class="r-pr">#></span> SFO IORE DFOP </span>
<span class="r-out co"><span class="r-pr">#></span> 1378.6832 615.7730 517.8836 </span>
<span class="r-out co"><span class="r-pr">#></span> </span>
<span class="r-out co"><span class="r-pr">#></span> Critical sum of squares for checking the SFO model:</span>
<span class="r-out co"><span class="r-pr">#></span> [1] 717.4598</span>
<span class="r-out co"><span class="r-pr">#></span> </span>
<span class="r-out co"><span class="r-pr">#></span> Parameters:</span>
<span class="r-out co"><span class="r-pr">#></span> $SFO</span>
<span class="r-out co"><span class="r-pr">#></span> Estimate Pr(>t) Lower Upper</span>
<span class="r-out co"><span class="r-pr">#></span> parent_0 83.7558 1.80e-14 77.18268 90.3288</span>
<span class="r-out co"><span class="r-pr">#></span> k_parent 0.0017 7.43e-05 0.00112 0.0026</span>
<span class="r-out co"><span class="r-pr">#></span> sigma 8.7518 1.22e-05 5.64278 11.8608</span>
<span class="r-out co"><span class="r-pr">#></span> </span>
<span class="r-out co"><span class="r-pr">#></span> $IORE</span>
<span class="r-out co"><span class="r-pr">#></span> Estimate Pr(>t) Lower Upper</span>
<span class="r-out co"><span class="r-pr">#></span> parent_0 9.69e+01 NA 8.88e+01 1.05e+02</span>
<span class="r-out co"><span class="r-pr">#></span> k__iore_parent 8.40e-14 NA 1.79e-18 3.94e-09</span>
<span class="r-out co"><span class="r-pr">#></span> N_parent 6.68e+00 NA 4.19e+00 9.17e+00</span>
<span class="r-out co"><span class="r-pr">#></span> sigma 5.85e+00 NA 3.76e+00 7.94e+00</span>
<span class="r-out co"><span class="r-pr">#></span> </span>
<span class="r-out co"><span class="r-pr">#></span> $DFOP</span>
<span class="r-out co"><span class="r-pr">#></span> Estimate Pr(>t) Lower Upper</span>
<span class="r-out co"><span class="r-pr">#></span> parent_0 9.76e+01 1.94e-13 9.02e+01 1.05e+02</span>
<span class="r-out co"><span class="r-pr">#></span> k1 4.24e-02 5.92e-03 2.03e-02 8.88e-02</span>
<span class="r-out co"><span class="r-pr">#></span> k2 8.24e-04 6.48e-03 3.89e-04 1.75e-03</span>
<span class="r-out co"><span class="r-pr">#></span> g 2.88e-01 2.47e-05 1.95e-01 4.03e-01</span>
<span class="r-out co"><span class="r-pr">#></span> sigma 5.36e+00 2.22e-05 3.43e+00 7.30e+00</span>
<span class="r-out co"><span class="r-pr">#></span> </span>
<span class="r-out co"><span class="r-pr">#></span> </span>
<span class="r-out co"><span class="r-pr">#></span> DTx values:</span>
<span class="r-out co"><span class="r-pr">#></span> DT50 DT90 DT50_rep</span>
<span class="r-out co"><span class="r-pr">#></span> SFO 407 1350 407</span>
<span class="r-out co"><span class="r-pr">#></span> IORE 541 5190000 1560000</span>
<span class="r-out co"><span class="r-pr">#></span> DFOP 429 2380 841</span>
<span class="r-out co"><span class="r-pr">#></span> </span>
<span class="r-out co"><span class="r-pr">#></span> Representative half-life:</span>
<span class="r-out co"><span class="r-pr">#></span> [1] 841.41</span>
<span class="r-in"><span> <span class="fu"><a href="https://rdrr.io/r/graphics/plot.default.html" class="external-link">plot</a></span><span class="op">(</span><span class="va">nafta_evaluation</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="NAFTA_SOP_2015-1.png" alt="" width="700" height="433"></span>
</code></pre></div>
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