12-23-2015 13:00; PM2.5; 178.0; 228; Very Unhealthy (at 24-hour exposure at this level)
9:15 PM - 22 Dec 2015
0 replies
3 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.