https://pubmed.ncbi.nlm.nih.gov/8266936/ https://pubmed.ncbi.nlm.nih.gov/8266936/ Money quote from the abstract: "The strongest association of exposure to woo

https://pubmed.ncbi.nlm.nih.gov/8266936/ https://pubmed.ncbi.nlm.nih.gov/8266936/ Money quote from the abstract: "The strongest association of exposure to wood dust and development of nasal cancer is observed in those occupations where workers are exposed to hard wood dust and chemical additives are not used." Note that the strongest association is when chemicals are NOT used - I suspect this might be more due to how people work the wood (less likely to sand particles board, more likely to wear protective gear) than the nature of the chemicals themselves. It does go on to say that various respiratory cancers are from both untreated and treated wood sawdust, but wood alone is well known to cause cancer.