tyle="width:100%;" class="table">
<colgroup>
<col width="2%">
<col width="5%">
<col width="7%">
<col width="7%">
<col width="21%">
<col width="12%">
<col width="8%">
<col width="8%">
<col width="8%">
<col width="8%">
<col width="9%">
</colgroup>
<thead><tr class="header">
<th align="left">id</th>
<th align="left">country</th>
<th align="left">state</th>
<th align="left">city</th>
<th align="left">station</th>
<th align="left">last_update</th>
<th align="left">pollutant_id</th>
<th align="left">pollutant_min