The diameter is quite similar - the paper here shows 760 nm which is in the same ballpark as asbestos fibers. Although it seems that lung cancer was more correl

The diameter is quite similar - the paper here shows 760 nm which is in the same ballpark as asbestos fibers. Although it seems that lung cancer was more correlated with exposure to longer fibers (>20um) [1], and these are quite short (3.5um) and hopefully not something you inhale. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2975987/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2975987/