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Created page with "<p>While few field studies of the pollutant removal capacity of bioswales are available from cold climate regions like Ontario, it can be assumed that they would perform simil..."
<p>While few field studies of the pollutant removal capacity of bioswales are available from cold climate regions like Ontario, it can be assumed that they would perform similar to [[bioretention cells]]. Bioretention provides effective removal for many pollutants as a result of sedimentation, filtering, plant uptake, soil adsorption, and microbial processes. It is important to note that there is a relationship between the water balance and water quality functions. If a bioswale infiltrates and evaporates 100% of the flow from a site, then there is essentially no pollution leaving the site in surface runoff. Furthermore, treatment of infiltrated runoff will continue to occur as it moves through the native soils. </p>
<table table class="table table-condensed table-striped">>
<tr class=s uccess>
<th class="text-center">Design</th>
<th class="text-center">Location</th>
<th class="text-center">Runoff reduction</th>
</tr>
<tr>
<td class="text-center">No underdrain</td>
<td class="text-center">Washington</td>
<td class="text-center">98 %</td>
</tr>
<tr>
<td class="text-center">No underdrain</td>
<td class="text-center">United Kingdom</td>
<td class="text-center">94 %</td>
</tr>
<tr>
<td class="text-center">With underdrain</td>
<td class="text-center">Maryland</td>
<td class="text-center">46 - 54 %</td>
</tr>
<tr>
<td colspan=2 class="text-right">Runoff reduction estimate</td>
<td class="text-center">85%</td>
</tr>
</table>
<table table class="table table-condensed table-striped">>
<tr class=s uccess>
<th class="text-center">Design</th>
<th class="text-center">Location</th>
<th class="text-center">Runoff reduction</th>
</tr>
<tr>
<td class="text-center">No underdrain</td>
<td class="text-center">Washington</td>
<td class="text-center">98 %</td>
</tr>
<tr>
<td class="text-center">No underdrain</td>
<td class="text-center">United Kingdom</td>
<td class="text-center">94 %</td>
</tr>
<tr>
<td class="text-center">With underdrain</td>
<td class="text-center">Maryland</td>
<td class="text-center">46 - 54 %</td>
</tr>
<tr>
<td colspan=2 class="text-right">Runoff reduction estimate</td>
<td class="text-center">85%</td>
</tr>
</table>