sean olson

RT @jilevin: The United States has a gun problem. Let’s put it in some perspective: https://t.co/KfCRmReuDT

Pm2.5 at 246 https://t.co/d3m1yQTiHn

Pm2.5 at 174 https://t.co/3oG9SDIAEm

PM2.5 at 155 https://t.co/yoiWHmzrkU

PM2.5 at 66 https://t.co/SOFz78aemP

PM2.5 at 55 https://t.co/DGFRQ9m8IP

PM2.5 at 41 https://t.co/3NHHNT3AFo

PM2.5 at 183 https://t.co/HuDDPJ7aC9

PM2.5 at 125 https://t.co/lKmnU4KWzK

PM2.5 at 21 https://t.co/EyPA42ZFHo