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<title>PEC_sw_sed. pfm 0.3-7</title>
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Johannes Ranke
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      <h1>Calculate predicted environmental concentrations in sediment from surface
water concentrations</h1>

<div class="row">
  <div class="span8">
    <h2>Usage</h2>
    <pre><div>PEC_sw_sed(PEC_sw, percentage&nbsp;=&nbsp;100, method&nbsp;=&nbsp;"percentage", sediment_depth&nbsp;=&nbsp;5, water_depth&nbsp;=&nbsp;30, sediment_density&nbsp;=&nbsp;1.3, PEC_sed_units&nbsp;=&nbsp;c("µg/kg", "mg/kg"))</div></pre>
    
    <h2>Arguments</h2>
    <dl>
      <dt>PEC_sw</dt>
      <dd>Numeric vector or matrix of surface water concentrations in µg/L for
which the corresponding sediment concentration is to be estimated</dd>
      <dt>percentage</dt>
      <dd>The percentage in sediment, used for the percentage method</dd>
      <dt>method</dt>
      <dd>The method used for the calculation</dd>
      <dt>sediment_depth</dt>
      <dd>Depth of the sediment layer</dd>
      <dt>water_depth</dt>
      <dd>Depth of the water body in cm</dd>
      <dt>sediment_density</dt>
      <dd>The density of the sediment in L/kg (equivalent to
g/cm3)</dd>
      <dt>PEC_sed_units</dt>
      <dd>The units of the estimated sediment PEC value</dd>
    </dl>
    
    <div class="Value">
      <h2>Value</h2>

      <p><dl>
The predicted concentration in sediment
</dl></p>
  
    </div>

    <div class="Description">
      <h2>Description</h2>

      <p>The method 'percentage' is equivalent to what is used in the CRD spreadsheet
PEC calculator</p>
  
    </div>
    
    <h2 id="examples">Examples</h2>
    <pre class="examples"><div class='input'>PEC_sw_sed(PEC_sw_drift(100, distances = 1), percentage = 50)
</div>
<div class='output'>     1 m 
2.130769 
</div></pre>
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    <h2>Author</h2>
    
Johannes Ranke

    
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