There's a number of papers linking air pollution with neurological damage. https://www.unep.org/news-and-stories/story/air-pollution-linked-huge-reduction-inte

There's a number of papers linking air pollution with neurological damage. https://www.unep.org/news-and-stories/story/air-pollution-linked-huge-reduction-intelligence https://www.unep.org/news-and-stories/story/air-pollution-li... https://www.sciencedirect.com/science/article/pii/S0160412015300945 https://www.sciencedirect.com/science/article/pii/S016041201... https://jamanetwork.com/journals/jamapsychiatry/article-abstract/1393589 https://jamanetwork.com/journals/jamapsychiatry/article-abst... https://www.sciencedirect.com/science/article/abs/pii/S0013935119302944 https://www.sciencedirect.com/science/article/abs/pii/S00139... Reminder: particulate is not just one substance, it's a zoo. It's not surprising that some can get into our bloodstream and become neurotoxic.