The Centers for Disease Control and Prevention (CDC) estimates that smoking (including exposure to secondhand smoke) is linked to around 480,000 deaths per year in the United States.
According to the National Highway Traffic Safety Administration (NHTSA), roughly 40,000 people die in motor‐vehicle crashes in the US each year.
Smoking accounts for roughly 12 times more deaths annually than motor vehicle accidents in the US
Smoking accounts for roughly 12 times more deaths annually than motor vehicle accidents in the US
There’s probably a few cancer cases attributed entirely to smoking that vehicle emissions might’ve also helped hasten.
While these numbers don’t take into account the amount of people doing either task, I imagine the placements won’t change much