Surely this would show up in pre and post London smog rates of disease? Or into the future with high EV cities and a drop in PM2.5? One is reassessment of past mortality bills the other is future intergenerational epidemiology.
The lead petrol thing took a while to establish. This may too.
What's Altzheimer rates like in India? Heaps of exposure and now emerging middle class so less use of charcoal overall but still high rates of (childhood) exposure.
Gas cooking is ubiquitous. Lots of new builds have only recirculating exhausts.
