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| author | Johannes Ranke <jranke@uni-bremen.de> | 2016-09-27 23:00:48 +0200 |
|---|---|---|
| committer | Johannes Ranke <jranke@uni-bremen.de> | 2016-09-27 23:00:48 +0200 |
| commit | 12a31f4c130c551f82232d9ef7dfb608bd52c53f (patch) | |
| tree | 2525ab1ea4102a6edddbd0c2f03f4a851bf2f9c5 /docs/GUS.html | |
| parent | 0d958ab6f84b569b5437f231c56004890c4ae23b (diff) | |
Reorganise repository using standard package layout
Diffstat (limited to 'docs/GUS.html')
| -rw-r--r-- | docs/GUS.html | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/docs/GUS.html b/docs/GUS.html new file mode 100644 index 0000000..cb4e10e --- /dev/null +++ b/docs/GUS.html @@ -0,0 +1,171 @@ +<!DOCTYPE html> +<html lang="en"> + <head> + <meta charset="utf-8"> +<title>GUS. pfm 0.3-8</title> +<meta name="viewport" content="width=device-width, initial-scale=1.0"> +<meta name="author" content=" +Johannes Ranke +"> + +<link href="css/bootstrap.css" rel="stylesheet"> +<link href="css/bootstrap-responsive.css" rel="stylesheet"> +<link href="css/highlight.css" rel="stylesheet"> +<link href="css/staticdocs.css" rel="stylesheet"> + +<!--[if lt IE 9]> + <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script> +<![endif]--> + +<script type="text/x-mathjax-config"> + MathJax.Hub.Config({ + tex2jax: { + inlineMath: [ ['$','$'], ["\\(","\\)"] ], + processEscapes: true + } + }); +</script> +<script type="text/javascript" + src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"> +</script> + </head> + + <body> + <div class="navbar"> + <div class="navbar-inner"> + <div class="container"> + <a class="brand" href="index.html">pfm 0.3-8</a> + <div class="nav"> + <ul class="nav"> + <li><a href="index.html">Home</a></li> + <li><a href="reference.html">Reference</a></li> + </ul> + </div> + </div> + </div> +</div> + + + <div class="container"> + <header> + + </header> + + <h1>Groundwater ubiquity score based on Gustafson (1989)</h1> + +<div class="row"> + <div class="span8"> + <h2>Usage</h2> + <pre><span class="functioncall"><a href='GUS.html'>GUS</a></span><span class="keyword">(</span><span class="symbol">...</span><span class="keyword">)</span> + +<span class="comment"># S3 method for numeric</span> +<span class="functioncall"><a href='GUS.html'>GUS</a></span><span class="keyword">(</span><span class="symbol">DT50</span><span class="keyword">,</span> <span class="symbol">Koc</span><span class="keyword">,</span> <span class="symbol">...</span><span class="keyword">)</span> + +<span class="comment"># S3 method for chent</span> +<span class="functioncall"><a href='GUS.html'>GUS</a></span><span class="keyword">(</span><span class="symbol">chent</span><span class="keyword">,</span> <span class="argument">degradation_value</span> <span class="argument">=</span> <span class="string">"DT50ref"</span><span class="keyword">,</span> + <span class="argument">lab_field</span> <span class="argument">=</span> <span class="string">"laboratory"</span><span class="keyword">,</span> <span class="argument">redox</span> <span class="argument">=</span> <span class="string">"aerobic"</span><span class="keyword">,</span> <span class="argument">sorption_value</span> <span class="argument">=</span> <span class="string">"Kfoc"</span><span class="keyword">,</span> + <span class="argument">degradation_aggregator</span> <span class="argument">=</span> <span class="symbol">geomean</span><span class="keyword">,</span> <span class="argument">sorption_aggregator</span> <span class="argument">=</span> <span class="symbol">geomean</span><span class="keyword">,</span> <span class="symbol">...</span><span class="keyword">)</span> + +<span class="comment"># S3 method for GUS_result</span> +<span class="functioncall"><a href='http://www.rdocumentation.org/packages/base/topics/print'>print</a></span><span class="keyword">(</span><span class="symbol">x</span><span class="keyword">,</span> <span class="symbol">...</span><span class="keyword">,</span> <span class="argument">digits</span> <span class="argument">=</span> <span class="number">1</span><span class="keyword">)</span></pre> + + <h2>Arguments</h2> + <dl> + <dt>...</dt> + <dd>Included in the generic to allow for further arguments later. Therefore +this also had to be added to the specific methods.</dd> + <dt>DT50</dt> + <dd>Half-life of the chemical in soil. Should be a field +half-life according to Gustafson (1989). However, leaching to the sub-soil +can not completely be excluded in field dissipation experiments and Gustafson +did not refer to any normalisation procedure, but says the field study should +be conducted under use conditions.</dd> + <dt>Koc</dt> + <dd>The sorption constant normalised to organic carbon. Gustafson +does not mention the nonlinearity of the sorption constant commonly +found and usually described by Freundlich sorption, therefore it is +unclear at which reference concentration the Koc should be observed +(and if the reference concentration would be in soil or in porewater).</dd> + <dt>chent</dt> + <dd>If a chent is given with appropriate information present in its +chyaml field, this information is used, with defaults specified below.</dd> + <dt>degradation_value</dt> + <dd>Which of the available degradation values should +be used?</dd> + <dt>lab_field</dt> + <dd>Should laboratory or field half-lives be used? This +defaults to lab in this implementation, in order to avoid +double-accounting for mobility. If comparability with the original GUS +values given by Gustafson (1989) is desired, non-normalised first-order +field half-lives obtained under actual use conditions should be used.</dd> + <dt>redox</dt> + <dd>Aerobic or anaerobic degradation data</dd> + <dt>sorption_value</dt> + <dd>Which of the available sorption values should be used? +Defaults to Kfoc as this is what is generally available from the European +pesticide peer review process. These values generally use a reference +concentration of 1 mg/L in porewater, that means they would be expected to +be Koc values at a concentration of 1 mg/L in the water phase.</dd> + <dt>degradation_aggregator</dt> + <dd>Function for aggregating half-lives</dd> + <dt>sorption_aggregator</dt> + <dd>Function for aggregation Koc values</dd> + <dt>x</dt> + <dd>An object of class GUS_result to be printed</dd> + <dt>digits</dt> + <dd>The number of digits used in the print method</dd> + </dl> + + <div class="Value"> + <h2>Value</h2> + + <p><dl> +A list with the DT50 and Koc used as well as the resulting score + of class GUS_result +</dl></p> + + </div> + + <div class="Description"> + <h2>Description</h2> + + <p>The groundwater ubiquity score GUS is calculated according to +the following equation +$$GUS = \log_{10} DT50_{soil} (4 - \log_{10} K_{oc})$$</p> + + </div> + + <div class="References"> + <h2>References</h2> + + <p>Gustafson, David I. (1989) Groundwater ubiquity score: a simple +method for assessing pesticide leachability. <em>Environmental +toxicology and chemistry</em> <b>8</b>(4) 339–57.</p> + + </div> + </div> + <div class="span4 sidebar"> + <!-- <ul> + <li>GUS</li><li>GUS.chent</li><li>GUS.numeric</li><li>print.GUS_result</li> + </ul> + <ul> + + </ul> --> + + + + <h2>Author</h2> + +Johannes Ranke + + + </div> +</div> + + <footer> + <p class="pull-right"><a href="#">Back to top</a></p> +<p>Built by <a href="https://github.com/hadley/staticdocs">staticdocs</a>. Styled with <a href="https://getbootstrap.com/2.0.4/">bootstrap</a>.</p> + </footer> + </div> + </body> +</html>
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