I don't live in a city, does air quality still affect me?

Yes, air quality is a global issue, it doesn't matter where you live you will still be affected. 

The air that we breathe travels around the globe as a result of wind patterns, caused by the sun heating and cooling the land and sea at different rates, and the rotation of the earth.  As the air carries gases, water vapour and particulate matter, this too is spread around the world.