Thank you for the link.
I notice no fruit trees are listed such as cherry.
There are other sites which give a variety of cautions.
Cherry pits are best to avoid, but we hear of lots of smoking pit cooking with a variety of woods — personally I like to smoke salmon with apple wood.
My basic point was that saw dust is very problematic and we don’t always know to avoid whatever exposure we can. Some that smell the best are actually the most harmful.