12-20-2016 21:00; PM2.5; 361.0; 408; Hazardous (at 24-hour exposure at this level)
5:15 AM - 20 Dec 2016
0 replies
4 retweets
3 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.