☣ Wood Toxicity Chart This chart based on research taken by Robert Woodcock, RN, BSN, CEN. The information is furnished free of charge and is based on public domain information that is believed to be reliable. We make no warranty as to the completeness or accuracy of this data. The information is to be used at an individual's own risk. ☑ Glossary of Terms: Irritation: Wood acts as an uncomfortable irritant - causing itching, rashes, watery eyes Sensitivity: Wood acts as a sensitizer - causing allergic reactions after repeated exposure Direct toxicity: Chemicals (extractives) in the wood species are poisonous Nausea, malaise: Exposure causes flu-like symptoms Systemic: Reactions are not confined to a specific body part; they affect much or most of the biologic system Nasopharyngeal Cancer: A Cancer that affects the back of the throat where the nasal passages open into it

Species	Reaction	Site	Potency	Source	Incidence
Bald Cypress	Sensitizer	Respiratory	+	Dust	Rare
Balsam Fir	Sensitizer	Eyes Skin	+	Leaves Bark	Common
Beech	Sensitizer Nasopharyngeal Cancer	Eyes Skin Respiratory	++	Leaves Bark Dust	Common
Birch	Sensitizer	Respiratory	++	Wood Dust	Common
Black Locust	Irritant Nausea	Eyes Skin	+++	Leaves Bark	Common
Blackwood	Sensitizer	Eyes Skin	++	Dust Wood	Common
Boxwood	Sensitizer	Eyes Skin	++	Dust Wood	Common
Cashew	Sensitizer	Eyes Skin	+	Dust Wood	Rare
Cocobolo	Irritant Sensitizer	Eyes Skin Respiratory	+++	Dust Wood	Common
Dahoma	Irritant	Eyes Skin	++	Dust Wood	Common
Ebony	Irritant Sensitizer	Eyes Skin	++	Dust Wood	Common
Elm	Irritant	Eyes Skin	+	Dust	Rare
Goncalo aves	Sensitizer	Eyes Skin	++	Dust Wood	Rare
Greenheart (Surinam)	Sensitizer	Eyes Skin	+++	Dust Wood	Common
Hemlock	Nasopharyngeal Cancer	Respiratory	?	Dust	Unknown
Iroko	Irritant Sensitizer Pneumonia	Eyes Skin Respiratory	+++	Dust Wood	Common
Mahogany (Swietenia)	Sensitizer Pneumonia	Skin Respiratory	+	Dust	Unknown
Mansonia	Irritant Sensitizer Nausea	Eyes Skin	+++	Dust Wood	Common
Maple (C. Corticale mold)	Sensitizer Pneumonia	Respiratory	+++	Dust	Common
Mimosa	Nausea		?	Leaves Bark	Unknown
Myrtle	Sensitizer	Respiratory	++	Leaves Bark Dust	Common
Oak	Sensitizer Nasopharyngeal Cancer	Eyes Skin	++, ?	Leaves Bark Dust	Rare, unknown
Obeche	Irritant Sensitizer	Eyes Skin Respiratory	+++	Dust Wood	Common
Oleander	Direct toxin Nausea	Cardiac	++++	Dust Wood Leaves Bark	Common
Olivewood	Irritant Sensitizer	Eyes Skin Respiratory	+++	Dust Wood	Common
Opepe	Sensitizer	Respiratory	+	Dust	Rare
Padauk	Sensitizer Nausea	Eyes Skin	+	Dust Wood	Rare
Pau ferro	Sensitizer	Eyes Skin	+	Dust Wood	Rare
Peroba rosa	Irritant Nausea	Respiratory	++	Dust Wood	Unknown
Purpleheart	Nausea		++	Dust Wood	Common
Quebracho	Irritant Nasopharyngeal Cancer Nausea	Respiratory	++, ?	Dust Leaves Bark	Common, unknown
Redwood	Sensitizer Nasopharyngeal Cancer Pneumonia	Eyes Skin Respiratory	++, ?	Dust	Rare, unknown
Rosewoods	Irritant Sensitizer	Eyes Skin Respiratory	++++	Dust Wood	Common
Satinwood	Irritant	Eyes Skin Respiratory	+++	Dust Wood	Common
Sassafras	Sensitizer Nasopharyngeal Cancer Direct Toxin Nausea	Respiratory	+, ?	Dust Wood Leaves Bark	Rare, unknown
Sequoia	Irritant	Respiratory	+	Dust	Rare
Snakewood	Irritant	Respiratory	++	Dust Wood	Rare
Spruce	Sensitizer	Respiratory	+	Dust Wood	Rare
Walnut, Black	Sensitizer	Eyes Skin	++	Dust	Common
Wenge	Sensitizer	Eyes Skin Respiratory	++	Dust Wood	Common
Western red cedar	Sensitizer	Respiratory	+++	Dust Leaves Bark	Common
Willow	Sensitizer Nausea	Respiratory	+	Dust Wood Leaves Bark	Unknown
Teak	Sensitizer Pneumonia	Eyes Skin Respiratory	++	Dust	Common
Yew	Irritant Direct toxin Nausea	Eyes Skin Cardiac	++,++++	Dust Wood	Common
Zebrawood	Sensitizer	Eyes Skin	++	Dust Wood	Rare