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>>>>>>> refs/remotes/origin/main
log Kow for neutral pH must be available in order to apply the Briggs
equation. It is not clarified when it can be regarded reliable, but the
equation is stated to be produced for non-ionic compounds, suggesting that
the compound should not be ionogenic (weak acid/base)
<<<<<<< HEAD
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<h1>Estimation of the transpiration stream concentration factor</h1>
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log Kow for neutral pH must be available in order to apply the Briggs
equation. It is not clarified when it can be regarded reliable, but the
equation is stated to be produced for non-ionic compounds, suggesting that
the compound should not be ionogenic (weak acid/base)
or ionic."><!-- mathjax --><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js" integrity="sha256-nvJJv9wWKEm88qvoQl9ekL2J+k/RWIsaSScxxlsrv8k=" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js" integrity="sha256-84DKXVJXs0/F8OTMzX4UR909+jtl4G7SPypPavF+GfA=" crossorigin="anonymous"></script><!--[if lt IE 9]>
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<img src="" class="logo" alt=""><h1>Estimation of the transpiration stream concentration factor</h1>
<small class="dont-index">Source: <a href="https://github.com/jranke/pfm/blob/HEAD/R/TSCF.R" class="external-link"><code>R/TSCF.R</code></a></small>
<div class="d-none name"><code>TSCF.Rd</code></div>
</div>
<div class="ref-description section level2">
<p>The FOCUS groundwater guidance (FOCUS 2014, p. 41) states that a reliable measured
log Kow for neutral pH must be available in order to apply the Briggs
equation. It is not clarified when it can be regarded reliable, but the
equation is stated to be produced for non-ionic compounds, suggesting that
the compound should not be ionogenic (weak acid/base)
or ionic.</p>
</div>
<<<<<<< HEAD
<div id="ref-usage">
<div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">TSCF</span><span class="op">(</span><span class="va">log_Kow</span>, method <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"briggs82"</span>, <span class="st">"dettenmaier09"</span><span class="op">)</span><span class="op">)</span></span></code></pre></div>
</div>
<div id="arguments">
<h2>Arguments</h2>
=======
<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="fu">TSCF</span><span class="op">(</span><span class="va">log_Kow</span>, method <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"briggs82"</span>, <span class="st">"dettenmaier09"</span><span class="op">)</span><span class="op">)</span></span></code></pre></div>
</div>
<div class="section level2">
<h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>
>>>>>>> refs/remotes/origin/main
<dl><dt>log_Kow</dt>
<dd><p>The decadic logarithm of the octanol-water partition constant</p></dd>
<dt>method</dt>
<dd><p>Short name of the estimation method.</p></dd>
</dl></div>
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<div id="details">
<h2>Details</h2>
<p>The Dettenmaier equation is given to show that other views on the subject exist.</p>
</div>
<div id="references">
<h2>References</h2>
=======
<div class="section level2">
<h2 id="details">Details<a class="anchor" aria-label="anchor" href="#details"></a></h2>
<p>The Dettenmaier equation is given to show that other views on the subject exist.</p>
</div>
<div class="section level2">
<h2 id="references">References<a class="anchor" aria-label="anchor" href="#references"></a></h2>
>>>>>>> refs/remotes/origin/main
<p>FOCUS (2014) Generic Guidance for Tier 1 FOCUS Ground Water Assessments.
Version 2.2, May 2014
Dettenmaier EM, Doucette WJ and Bugbee B (2009) Chemical hydrophobicity and uptake
by plant roots. Environ. Sci. Technol 43, 324 - 329</p>
</div>
<<<<<<< HEAD
<div id="ref-examples">
<h2>Examples</h2>
=======
<div class="section level2">
<h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
>>>>>>> refs/remotes/origin/main
<div class="sourceCode"><pre class="sourceCode r"><code><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">TSCF</span>, <span class="op">-</span><span class="fl">1</span>, <span class="fl">5</span>, xlab <span class="op">=</span> <span class="st">"log Kow"</span>, ylab <span class="op">=</span> <span class="st">"TSCF"</span>, ylim <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">0</span>, <span class="fl">1.1</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">TSCF_2</span> <span class="op"><-</span> <span class="kw">function</span><span class="op">(</span><span class="va">x</span><span class="op">)</span> <span class="fu">TSCF</span><span class="op">(</span><span class="va">x</span>, method <span class="op">=</span> <span class="st">"dettenmaier09"</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/curve.html" class="external-link">curve</a></span><span class="op">(</span><span class="va">TSCF_2</span>, <span class="op">-</span><span class="fl">1</span>, <span class="fl">5</span>, add <span class="op">=</span> <span class="cn">TRUE</span>, lty <span class="op">=</span> <span class="fl">2</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/legend.html" class="external-link">legend</a></span><span class="op">(</span><span class="st">"topright"</span>, lty <span class="op">=</span> <span class="fl">1</span><span class="op">:</span><span class="fl">2</span>, bty <span class="op">=</span> <span class="st">"n"</span>,</span></span>
<span class="r-in"><span> legend <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"Briggs et al. (1982)"</span>, <span class="st">"Dettenmaier et al. (2009)"</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="TSCF-1.png" alt="" width="700" height="433"></span>
</code></pre></div>
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