Can someone convert this into cigarettes? Is living here today the equivalent of smoking 2 cigarettes or 2 packs of cigarettes or what?

AirNow.

IN THE COMMENTS: Chest Rockwell said: "There's a calculator for that!" 

Thanks! So it's like I'm smoking 10 cigarettes today. That's about the number of actual cigarettes I've smoked in my entire life.

There's also this, from Enigma, about why cigarette smoke is much worse.