="left">pollutant_id</td>
<td align="left">keyword</td>
</tr>
<tr class="odd">
<td align="left">pollutant_min</td>
<td align="left">pollutant_min</td>
<td align="left">double</td>
</tr>
<tr class="even">
<td align="left">pollutant_max</td>
<td align="left">pollutant_max</td>
<td align="left">double</td>
</tr>
<tr class="odd">
<td align="left">pollutant_avg</td>
<td align="left">pollutant_avg</td>
<td align="left">double</td>
</tr>
<tr class="even">
<td align="left">pollutant_unit</td>
<td align="left">pollu