12-30-2015 03:00; PM2.5; 460.0; 473; Hazardous (at 24-hour exposure at this level)
11:15 AM - 29 Dec 2015
0 replies
2 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.