02-20-2014 12:00 to 02-21-2014 11:59; PM2.5 24hr avg; 339.7; 389; Hazardous
8:15 PM - 20 Feb 2014
0 replies
2 retweets
2 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.