d <code>airsensor</code> object will be loaded for
the given month. Archived data for SCAQMD sensors go back to January, 2018.</p>
<p>The <code>datestamp</code> can must be in the following format:</p>
<ul><li><p><code>"YYYYmm"</code></p></li>
</ul><p>By default, the current month is loaded.</p>
<p>Each <code>airsensor</code> object contains data from a named collection of 
PurpleAir sensors.</p>
    </div>

    <div id="ref-usage">
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span cla