Here's half of the equation: https://www.iihs.org/topics/fatality-statistics/detail/yearl... https://www.iihs.org/topics/fatality-statistics/detail/child...

Edit: Here's relevant data to the other side: https://www.theguardian.com/environment/2019/apr/10/vehicle-... https://www.cdc.gov/asthma/asthma_stats/asthma_underlying_de...