In the realm of actual threats to our health, a coal-fired power plant has been churning east of Centralia since 1972 essentially because nuclear power is scary. That’s 120,000 TONS of sub-bituminous coal (much nastier stuff than avgas) EVERY WEEK for the last 50+ years.
Put another way, that single power plant emits more and worse exhaust in one week than the nationwide consumption of avgas for a period of about six months.
Humans are generally very poor estimators of risk.
Please explain the inappropriate content below.