Air Quality Index
![Hourly AQI (Combined PM2.5 and 03)](https://webarchive.library.unt.edu/web/20170125163905im_/https://files.airnowtech.org/airnow/today/cur_aqi_vt_nh_ma_ct_ri_me.jpg)
0-50 Good
51-100 Moderate
101-150 USG*
151-200 Unhealthy
201-300 Very Unhealthy
301+ Hazardous
2017 Air Quality Exceedances
PM2.5
PM2.5