an><span class="va">EF</span>     <span class="op">&lt;-</span> <span class="fu"><a href="reference/emissionFactor.html">emissionFactor</a></span><span class="op">(</span>example <span class="op">=</span> <span class="cn">T</span><span class="op">)</span></span>
<span><span class="co"># using a example emission factor (values calculated from CETESB 2015):</span></span>
<span><span class="co">#                                     CO          PM</span></span>
<span><span class="co"># Light Duty Vehicles Gasoh