One of the previous years AQI 246 (in SF) was compared to smoking 11 cigarettes a day by some researchers. Assuming you do literally nothing to avoid it, 500 mu

One of the previous years AQI 246 (in SF) was compared to smoking 11 cigarettes a day by some researchers. Assuming you do literally nothing to avoid it, 500 must be like smoking a ~pack a day. That is a typical, easy to track volume for many smokers; I used to smoke a pack a day for a couple years (gave up completely ~15 years ago)... it's not great statistically (and certainly make cardio harder from my experience), but it feels just like normal life and is low enough impact that many people never give up 0_o