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Do you really need an independent peer-reviewed study to know if inhaling brake dust is bad for you or not?

At some point, it's important to trust your instincts. I don't think you need a medical degree to understand that inhaling tiny particles made of nasty stuff leads to bad health outcomes.

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While the sentiment on that is laudable, it's that kind of assuming that leads all kinds of idiots to jump to entirely ridiculous conclusions.

Given that we're on HN, I was assuming that everyone here is educated and has some kind of basic reasoning skills. Common knowledge and all that.

Instincts often cheat you. I'm not saying that it's healthy but Does it really have any effect at all? What's the concentration of particles? How harful is it comparing to cooking or peeling onions? Do we need to care about it at all?

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