10-28-2013 20:00; PM2.5; 393.0; 429; Hazardous (at 24-hour exposure at this level)
5:15 AM - 28 Oct 2013
0 replies
4 retweets
1 like
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.