PM2.5 smog is literally poisonous.. From Wiki[1]:<p><pre><code>    The smaller PM2.5 were particularly deadly, with a 36%
    increase in lung cancer per 10 μg&#x2F;m3 as it can penetrate
    deeper into the lungs
</code></pre>
And...<p><pre><code>    An increase in estimated annual exposure to PM 2.5 of
    just 5 µg&#x2F;m3 was linked with a 13% increased risk of heart
    attacks.
</code></pre>
So 36% increase in lung cancer per 10μg&#x2F;m3 and a 13% increase in heart attacks from 5μg&#x2F;m3.<p>The level in Beijing right now is <i>250μg&#x2F;m3</i>.  It maxed at over 360μg&#x2F;m3 in the past 48 hours.[2]<p>People are literally being killed by Beijing&#x27;s air quality as we speak, should we temper our language to not appear biased?<p>[1] - <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Particulates" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Particulates</a><p>[2] - <a href="http:&#x2F;&#x2F;aqicn.org&#x2F;city&#x2F;beijing&#x2F;us-embassy&#x2F;" rel="nofollow">http:&#x2F;&#x2F;aqicn.org&#x2F;city&#x2F;beijing&#x2F;us-embassy&#x2F;</a>