The study was on those over 65, so in terms of London smog and India; life expectancies lower so maybe if data available similar signals might be very difficult

The study was on those over 65, so in terms of London smog and India; life expectancies lower so maybe if data available similar signals might be very difficult/impossible to detect. > Or into the future with high EV cities and a drop in PM2.5? We can hope but - tire wear produces similar sized micro plastic pollution [0] and electric cars are heavier and are likely to produce more of them [1]. Add into mix that chemically different make up and who knows [2] [0] e.g. https://www.theguardian.com/environment/2022/jun/03/car-tyres-produce-more-particle-pollution-than-exhausts-tests-show https://www.theguardian.com/environment/2022/jun/03/car-tyre... [2] [1] https://www.sciencedirect.com/science/article/abs/pii/S1352231023000237 https://www.sciencedirect.com/science/article/abs/pii/S13522... [2] e.g https://newatlas.com/environment/tire-particles-swimming-abnormalities-death-fish-shrimp/ https://newatlas.com/environment/tire-particles-swimming-abn...