alt Hacker NewsProbably not true per capita. In the suburb I partially grew up with they would kidnap homeless people and bus them to the nearest city. This is quite common throughout California and many red states.
Suburbs have more cars per capita, more driving in general, more asphalt,[0] more time commuting/being on the streets to reach common destinations, more exposure to smoke from fires, and sometimes even more exposure to pollutants and pesticides from farming (especially if they have golf courses. Golf courses use about 5x more pesticides than farmland per acre). Suburbs also have more suicides per capita than cities
[0] https://www.sciencedirect.com/science/article/abs/pii/S03043...
AFAIK generally health studies don't distinguish all that much between urban and suburban, partially because that would require you to come up with a consistent definition of both; and even across states in the US, the definition of a "city" is wildly inconsistent and more a reflection however the politics of a place evolved.