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The following information is reprinted with permission from data provided by John Banner, a wood turner from Torrance, California who almost lost his life in 1989 to anaphylactic shock after turning pieces of exotic wood.
You can bet John wears his RACAL respirator every time he turns on his lathe now! John has assembled this data over the years from various sources and when an entry appears in red, this indicates that the information has come from only one source and has not been verified elsewhere.
Some of the information here has come as a surprise to me and its a wonder I've never had a toxic reaction to wood that I've been aware of.
As a craftsman, I've worked with a lot of exotics, but as a wood collector I've worked with lots more strange stuff from all over the world with no ill effects. Each of us is different and you can call me old "iron gut".
Sorry that this is such a patchwork effort and may be difficult to follow, and that Latin names of woods are not included. I can't judge with any authority the validity of the information presented here and it's up to the user's discretion to further research any wood themselves, though John has told me the information here has appeared in several woodworking magazines (for what that's worth).
Take this as a jumping off point. After each wood name comes categories between slashes / /:
Class: Woods are either an irritant which cause a reaction fairly rapidly after exposure and will cause a similar reaction repeatedly, or sensitizers which may have a latency period of hours or months and may require repeated handling before reaction occurs. Sensitizer's are the more severe, because once you're sensitized, you're sensitized for life and the reactions only get more dramatic. A bit like paying taxes to the Gov, huh?
Reaction Category:
Potency: Small, Great, Extreme. This is the potential of the wood or sawdust doing harm and would vary with the individual i.e., those who are allergy prone might think twice about working with wood classed as extremely potent.
Source: Dust or Wood or both
Incidence: Unknown, Rare or Uncommon. This is probably the vaguest of the categories as most doctors wouldn't know an allergic reaction to wood if it bit them in the face.
Note that this data does not take into consideration Man's penchant for trying to poison himself by using formaldehyde in plywood, treated woods, sodium compounds in white pine to prevent blue stain, etc.
Ian Fisher, Fort Mill, SC
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Ian Fisher, Fort Mill, SC
"If you are looking for the best blueprints, illustrations and schematics to make any project hassle-free, I highly recommend TedsWoodworking!"
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