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Tip #49
Wood Toxicity Table
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See Legend & Reference information below.

Wood Reaction Site Potency Source Incidence
Bald Cypress S R + D R
Balsam Fir S E, S + LB C
Beech S, C E, S, R ++ LB, D C
Birch S R ++ W, D C
Black Locust I, N E, S +++ LB C
Blackwood S E, S ++ W, D C
Boxwood S E, S ++ W, D C
Cashew S E, S + W, D R
Cocobolo I, S E, S, R +++ W, D C
Dahoma I E, S ++ W, D C
Ebony I, S E, S ++ W, D C
Elm I E, S + D R
Goncalo Alves S E, S ++ W, D R
Greenheart S E, S +++ W, D C
Hemlock C R ? D U
Iroko I, S, P E, S, R +++ W, D C
Mahogany S, P S, R + D U
Mansonia I, S
N
E, S
 
+++
+
W, D
D
C
Maple (Spalted) S, P R +++ D C
Mimosa N   ? LB U
Myrtle S R ++ LB, D C
Oak S
C
E, S
 
++
?
LB, D
D

R
U

Obeche I, S E, S, R +++ W, D C
Oleander DT N, C ++++ D, W, LB C
Olivewood I, S E, S, R +++ W, D C
Opepe S R + D R
Padauk S E, S, R + W, D R
Pau Ferro S E, S + W, D R
Peroba Rosa I R, N ++ W, D U
Purpleheart   N ++ W, D C
Quebracho I
C
R, N
 
++
?
LB, D
D
C
U
Redwood S, P
C
E, S, R
 
++
?
D
D
R
U
Rosewoods I, S E, S, R ++++ W, D U
Satinwood I E, S, R +++ W, D C
Sassafras S
DT
C
R
N
 
+
+
?
D
D, W, LB
D
C
R
U
Sequoia I R + D R
Snakewood I R ++ W, D R
Spruce S R + W, D R
Walnut, Black S E, S ++ W, D C
Wenge S E, S, R + W, D C
Willow S R, N + D, W, LB U
West. Red Cedar S R +++ D, LB C
Teak S, P E, S, R ++ D C
Yew I
DT
E, S
N, C
++
++++
D
W, D
C
C
Zebrawood S E, S ++ W, D  

Reaction Site Source Incidence
I - irritant S - skin D - dust R - rare
S - sensitizer E - eyes LB - leaves, bark C - common
C - nasopharyngeal cancer R - respitatory W - wood U - uncommon
P - pheunomitis, alveolitis (hypersensitivity pneumonia) C - cardiac
DT - direction toxin
N - nausea, malaise

Reference:
1. Woods Toxic to Man, author unknown
2. Woods, B., Calnan, C.D., "Toxic Woods." Br. Journal of Dermatology 1976
3. ILO Encyclopedia of Occupational Health and Safety 1983
4. Lame, K., McAnn, M., AMA Handbook of Poisonous and Injurious Plants, AMA 1985
5. Poisondex, Micromedix Inc. 1990

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