07-20-2012 05:00; PM2.5; 195.0; 245; Very Unhealthy (at 24-hour exposure at this level)
2:07 PM - 19 Jul 2012
0 replies
2 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.