01-16-2013 10:00; PM2.5; 269.0; 319; Hazardous (at 24-hour exposure at this level)
6:07 PM - 15 Jan 2013
0 replies
6 retweets
0 likes
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.