http://wiki.china.org.cn/index.php?action=history&feed=atom&title=CIIC%3AToday%27s_featured_article%2FJanuary9%2C_2012CIIC:Today's featured article/January9, 2012 - Revision history2026-04-24T13:26:08ZRevision history for this page on the wikiMediaWiki 1.34.2http://wiki.china.org.cn/index.php?title=CIIC:Today%27s_featured_article/January9,_2012&diff=32076&oldid=previmported>Ciic: Created page with 'the smog in Beijing '''PM2.5''' particles are air pollutants with a diameter of 2.5 micrometers or less, small enough to invade even the smalles...'2012-01-09T01:14:00Z<p>Created page with '<a href="/index.php?title=File:PM.JPEG" title="File:PM.JPEG">thumb|200px|left|the smog in Beijing</a> '''PM2.5''' particles are air pollutants with a diameter of 2.5 micrometers or less, small enough to invade even the smalles...'</p>
<p><b>New page</b></p><div>[[file:PM.JPEG|thumb|200px|left|the smog in Beijing]]<br />
'''PM2.5''' particles are air pollutants with a diameter of 2.5 micrometers or less, small enough to invade even the smallest airways. [[PM2.5|(More...)]]</div>imported>Ciic