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July Newsletter

Marilyn Bergevin | Published on 7/31/2025

   

    THE SPIN

STRAIT TURNERS NEWSLETTER

July, 2025      No. 25-7

Our Website Link:  https://straitturners.org

2025 Board of Directors:


President: Ted Lund

Vice President: Brian Johnson

Treasurer: Jackie Le Doux

Member-at-Large:  Fred Hershman

Secretary: Marilyn Bergevin

Past President: Jon Geisbush

Membership Director:  Lisa Brice

Communications Director:  Jeff Foro

Member-at-Large: Antoinette Teglovic


Committees and Volunteer Staff

Auction/Wood Sales Committee:   Wood Wrangler, Ed Jones, Jon Geisbush, Marilyn Bergevin

Web Master:  DJ Dimick

Communications Committee:  Chair, Jeff Foro, Webmaster, DJ Dimick; Sponsorships (open); Newsletter, Ted Lund, Photographer, Valerie Henschel, Web Content, (open); LibrarianRobert Bindschadler,

Audio/Visual:  Mark Nebel, Robert Bindschadler, Lisa Brice

TABLE OF CONTENTS

Club Calendar

2

President’s Message

3

Meeting Time Change

3

Women in Turning

3

Programs—Turn-a-Thon

4

President’s Challenge

4

Open Shops

4

Summer Picnic

5

Website

5

Member Project

5-6

Library

6

Shop Tours

6

Wood Sales

6-7

Help Wanted

7

AAW Resources—Wood Toxicity

7-21

 

 

CLUB CALENDAR

 

July 18-20

Turn-a-thon, 961 East Fir St., Sequim

August 5

Board Meeting via Zoom, 6:30

August 9

Summer Picnic, 11:30-2:30, 132 John Carl Road, Sequim

August 15

Monthly Meeting and Demo, Mark Nebel, 10:00-1:30, GCC and Zoom

September 2

Board Meeting via Zoom, 6:30

September 20

Monthly Meeting and Demo, Saleem Shafi, 10:00-1:30, GCC and Zoom

October 7

Board Meeting via Zoom, 6:30

Oct. 21 (Tuesday)

Monthly Meeting and Demo, Yann Marot, GCC and Zoom

November 1-2

Port Townsend Woodworker’s Show

November 4

Board Meeting via Zoom, 6:30

November 15

Monthly Meeting and Demo, Mike Gonyer, 10:00-1:30, GCC and Zoom

December 2

Board Meeting via Zoom, 6:30

December 20

Holiday Party, 11:00-1:00

 

 

 

 

 

PRESIDENT’S MESSAGE

Members of the Strait Turners Chapter of AAW:

In place of our regular meeting this month, we will be doing our annual Turn-a-Thon.  This is the fourth iteration of this event.  The first two were held in the parking lot at the Gardiner Community Center; and last year we did in just down the road at Birds of the Wild.  In none of those cases did we get much interest from the public.

The primary purpose of the event is to have fun with your fellow turners.  Also, we want to increase the public visibility of the club and stimulate interest in joining.  We will also have donated items for sale to the public.

This year’s Turn-a-Thon will be at the home of Jim Julian, at 961 East Fir Street in Sequim.  This is essentially across the street from the main entrance to Carrie Blake Park, the epicenter of the Lavender Festival.  Our Turn-a-thon will coincide with Lavender Weekend, July 18-20.  Jim’s home is on a primary route for foot traffic to and from the festival.  Parking is limited close to the park and hundreds of people have to park blocks away and walk along Fir Street or take the shuttle bus on that street.   We are much indebted to Jim for volunteering his home.

Brian Johnson is taking the lead in organizing the event, again.  You received his email asking for help staffing the event.  Please respond, if you have not done so.  The more turners in attendance, the more fun we will have.

Ted Lund, President, 2024-25

 

MEETING TIME CHANGE

Beginning with the August meeting, our starting time will be 10:30. GCC now has someone using the hall on Friday nights, prior to our meetings.  Mark and Bob have been starting setup for our meeting on Friday night.  Removing that option leaves them insufficient time to complete that work before 10:00.  The start of social time, before the meeting will now be 10:00.

 

WOMEN IN TURNING OPPORTUNITY

The deadline for applying for a $500 WIT scholarship is August 1, 2025.  See the May Newsletter for details.

 

 

PROGRAMS

Our event for July is the 4th annual Turn-a-Thon from 9 a.m. to 6 p.m. on Friday, July 18, 9 a.m. to 6 p.m. on Saturday, July 19, and 9 a.m. to 3 p.m. on Sunday, July 20. It will be at the home of Jim Julian at 961 E. Fir St, Sequim, WA. (There will not be a demonstration at the Gardiner Center this month). All members are invited to attend either to turn wood, sell donated items or just sit and visit. There should be a lot of Lavender Festival foot traffic passing by, so we anticipate quite a bit of interest from the general public.

We plan to set up 3 lathes in Jim’s driveway and turn a variety of items, most notably tops and weed pots. Wood will be provided. If you plan to turn, please bring your own turning tools to maintain accountability over the 3-day event.

This is a potential moneymaker for the club if we sell our donated items. Also, we hope to attract a few new members.

We could use a few more volunteers, especially on Friday. Also, we need volunteers to help deliver items and set up at Jim’s house on Thursday afternoon. Breakdown will begin at 3 p.m. on Sunday. Call Brian Johnson at info@straitturners.org if you can help.

If you plan to attend the Turn-a-Thon and are coming from out of town, please allow plenty of time before your shift to get there. Traffic during the event will be very heavy. There is parking (for club members) behind Jim’s house. It is accessed in the alley between Fir St. and Alder St. Jim suggests that if you have items to deliver, drive to the front, drop off the items and then drive around to the back to park.

Hope to see you there.

By Brian Johnson

 

PRESIDENT’S CHALLENGE

For July bring bud vases/weed pots to give away at the Turn-a-Thon.

For August, turn something long and thin, as demonstrated by Tim Larson last month.

 

OPEN SHOPS

Please contact Brian Johnson, to sign up or talk about hosting an Open Shop of your own. 

 

 

 

SUMMER PICNIC

My husband Ken and I are happy to host the Strait Turner Summer Picnic on Saturday, August 9 from 11:30 am to 2:30 pm. We live in Sequim at 132 John Carl Rd. We have plenty of parking along the fence in front of our house and in the driveway.

We have seating for 25; but it would be helpful if some of you can bring a lawn chair. The club will be providing hamburgers and hot dogs. Please sign up for an item to bring to share on the Google sheet link: https://docs.google.com/spreadsheets/d/1MNgrgcbX6_2XhZPXZTU6riNyZ7f_KgZY/edit?usp=sharing&ouid=101610929576879951399&rtpof=true&sd=true. Just click on the link and type your name next to the item you will bring. If you have any trouble signing up on the google sheet, just send me an email with the item you choose to bring. 

We look forward to seeing you on August 9. Let me know if you have any questions. Please RSVP to me via text, 661-472-5820, or email, marilynbergevin0513@gmail.com

Marilyn Bergevin

 

WEBSITE

Great progress is being make on the new Website. The team of Fred and Kathy Hershman and Marilyn Bergevin have been seeking help from members in redesigning our logo and providing photos.  If you have ideas for them, contact Marilyn.

 

MEMBER PROJECT

Our club recently obtained a Siberian Elm tree for turning.  This is beautiful wood; but, like the fruitwoods, Madrone, and others, it tends to warp and crack substantially during drying.  One way to deal with such tendencies is to turn the wood thin while green and dry carefully.  This article describes my recent experience doing this with the Siberian Elm.  Starting with a half-round of green wood, I turned a bowl about 7 inches wide and 2 deep.  It was turned about 1/8” thick and sanded to 320 grit.  Then I coated it liberally with my go-to finish, mineral oil and beeswax (4 to 1 volumetric).  Then it was placed in a microwave for one minute.  Then it was turned over and microwaved for another minute.  This was all done immediately after turning. 

The microwave turned much of the water in the wood into pressurized steam.  The pressure forced much of this steam out of the wood.  As the wood cooled, the liquified finish was drawn into the wood, replacing some of the lost water.  The bowl was now warped, as expected, now 6 ½ inches long and 5 3/4 inches wide.  The bottom of the bowl was no longer flat.  Also, processing had raised the grain of the wood.

Once the wood had cooled, I placed it into two brown paper bags, to limit the drying rate.  I was unable to get back to it for about a week.  When the bags were opened, the bowl was at 11% moisture, which I consider dry in our climate.  I then hand-sanded the bowl with 180 and 320 grit sandpaper.  Next, I used a stationary belt sander to flatten the bowl bottom to where it woold not rock when placed on a flat surface.  The final step was finishing again with the mineral oil and beeswax finish. 

The pith goes through one end of the bowl and no cracking has occurred anywhere on the bowl.  Although I did some things differently from what I have done in the past, I am very pleased with the result.

By Ted Lund

 

STRAIT TURNERS LIBRARY

Please remember to return the items you have checked out of the club library.  Also, take a look at what is available to check out at the next meeting.  This is a treasure trove of information for the woodturner.  Contact info@straitturners.org, if you have any questions about the library or want to donate to it.

 

SHOP TOURS

The Port Angeles Shop Tour has been cancelled do to lack of volunteer hosts.

 

Please contact Antoinette if anyone needs a cheering up. She will be happy to oblige.

info@straitturners.org.

 

 

WOOD AND TOOL AUCTION

Thank you all for your support of the auction last month.  You raised $337 to help us pay for quality demonstrations and other club activities. 

There will be no auction at the Turn-a-Thon.  Please plan to bring some quality wood or tools to the August meeting.

If a community member or anyone else needs a tree removed, they can contact Ed Jones, who will organize volunteers to help cut and transport the wood. Members are encouraged to support the effort by assisting Ed with cutting and hauling when needed. If you're willing to lend a hand, please reach out to Ed.

 

HELP WANTED!

Hosts for Open Shop Events—Can you host a small number of members in your shop for a session on some aspect of turning?  If so, contact Brian Johnson.

Sponsorship Coordinator—Someone to recruit, communicate with, and document our Sponsors.  A new Sponsorship program has been approved by the Board.  We just need someone to put this in front of potential sponsors.

 

AAW

We are a chapter of the American Association of Woodturners.  Members are encouraged to join AAW to access the huge selection of resources there for turners.  Free trial memberships are available at the Membership Landing Page. See the AAW Webpage, https://www.woodturner.org/, for information like this:


Wood Allergies and Toxicity

Top of Form

Bottom of Form

by Eric Meier

“Not to omit any one of them, the yew is similar to these other trees in general appearance . . . It is an ascertained fact that travellers’ vessels, made in Gaul of this wood, for the purpose of holding wine, have caused the death of those who used them.”

–Pliny the Elder, from Naturalis Historia, ca. 77 AD

Looking at the above quotation, (taken from a writing nearly two thousand years old), ought to bring—at the very least—a small bit of respect and attention to the matter of safety as it pertains to wood toxicity. If this subject has been known and reported as “ascertained fact” since ancient history, how much more ought we to take heed in modern times, considering that we have so many more well-developed means of communication and testing?

 

A turned yew bowl by Steve Earis

 

Wood Toxicity and Allergen Chart

Below you’ll find a chart of various wood species, along with their reported effects and properties. The information on this chart has been compiled from many sources, with references given at the bottom. When viewing the chart, please keep the following in mind:

Just because any given wood is not listed on the chart, does not mean that it is completely safe to use. It simply means that adverse reactions have not been reported as of yet. (The wood may be very obscure or unknown.) One helpful thing to do if you have confirmed that you’re allergic to a specific species of wood, is to check for related species (listed at the end of each wood profile page). Many times, a wood in a particular genus will share similar allergic compounds with other related woods, resulting in cross-reactions.) For example, Cocobolo is in the Dalbergia genus, and is also closely related to other woods such as KingwoodTulipwoodHonduran Rosewood, etc. Also, you may notice two wood types that sound like they’re related, such as Black Cherry (Prunus genus) and Brazilian Cherry (Hymenaea genus), but they are actually quite unrelated.

All inhaled wood dust is hazardous to your long-term health. This chart simply lists specific woods that can aggravate symptoms through allergic reactions, or woods that are outright toxic in and of themselves. However, all woods produce fine dust when worked, which in turn can damage your lungs and cause a number of other adverse health reactions. (This particular health issue—and the unhealthy buildup of such dusts in small woodworking or hobbyist shops—has been dealt with at length on Bill Pentz’ website.)

A common question: is this wood safe to use as a plate/bowl/cutting board/etc.? Despite the very long list of woods below, very few woods are actually toxic in and of themselves. But what a great number of woods do have the potential to do is cause allergic reactions in sensitive individuals. This risk for finished wood projects is greatly lessened (but not eliminated) with the application of a food-safe finish. In the end, using almost any wood is a calculated risk, and the question boils down to this: how much of a potential risk am I comfortable with? 1 in 10? 1 in 1,000? 1 in 1,000,000? (The last two columns did not transfer correctly from the original.  See this website for the original data: https://www.wood-database.com/wood-articles/wood-allergies-and-toxicity/.)

Wood Species

Reaction

Area(s) Affected

Potency

Abura

irritant, nausea, giddiness, and vomiting

African Blackwood

irritant, sensitizer

 

Afrormosia

irritant, nervous system effects, asthma, splinters go septic

 

Afzelia

irritant, sneezing

 

Agba(Gossweilerodendron balsamiferum)

irritant

 

Aglaia (Aglaia genus)

irritant

 

Ailanthus

irritant

Albizia

irritant, nausea, pink eye, giddiness, nose bleeds

 

Alder (Alnus genus)

irritant

 

Alligator Juniper

irritant

 

Amboyna

irritant, asthma

 

 

Andiroba

irritant, sneezing

 

Angelim vermelho

unspecific allergic reactions

 

Araracanga

irritant, asthma

 

Ash (Fraxinus genus)

irritant

 

Ash, alpine(Eucalyptus delegatensis)

irritant

 

 

Ash, mountain

irritant

 

Australian Blackwood

irritant, sensitizer, asthma

 

Australian Cashew Nut(Semecarpus australiensis)

irritant, skin lesions, nosebleeds

 

Avodire

irritant, nose bleeds, internal bleeding, asthma

 

Balsa

irritant

Bamboo

irritant

Batai

irritant, sneezing

 

Birch (Betula genus)

irritant, sensitizer, nausea

 

Black Cherry

wheezing, giddiness

Black Locust

irritant, nausea

 

Blackbean(Castanospermum australe)

irritant

 

 

Bloodwood

irritant, excessive thirst, salivation, nausea

Bloodwood, Red (Australian)

irritant

 

Blue Gum

irritant

Blue Mahoe

sneezing

Bocote

cross reactions possible once sensitivity to other woods have developed

Bosse

irritant, sensitizer, asthma, nausea, headache

 

Box, Gray

irritant, rash

 

Boxwood, Knysna(Gonioma kamassi)

irritant, headache, asthma

 

 

Boxwood, European

irritant, sensitizer

 

Brazilwood

irritant, headache, nausea, swelling skin, blisters

Brigalow(Acacia harpophylla)

irritant

 

Brownheart

irritant

Bubinga

irritant, lesions

 

Buckthorn

irritant, sap can cause dermatitis

Bulletwood

irritant

Camphor

irritant, asthma, headaches, giddiness

 

Cashew(Anacardium occidentale)

irritant, blisters, sensitizer

Camatillo

irritant

Catalpa

irritant

Cedar, Alaskan Yellow

irritant

Cedar, Aromatic Red

irritant

 

Cedar, Atlantic White

irritant

Cedar, Australian Red

irritant, asthma, migraine, giddiness, bronchitis, stomach cramps,NPC(rare)

 

Cedar, Incense

irritant, rashes

Cedar of Lebanon

irritant, asthma, runny nose, respiratory disorders

 

Cedar, Northern White

irritant, asthma

 

Cedar, Port Orford

irritant, runny nose, asthma, kidney problems (diuresis)

 

Cedar, Spanish

irritant

Cedar, Southern Red

irritant

 

Cedar, Western Red

irritant, sensitizer, runny nose, asthma, nervous system effects,NPC(rare)

 

Cheesewood

irritant

Chechen

irritant, sensitizer

 

Chestnut, Chinese(Castanea mollissima)

irritant

Chestnut, Sweet

irritant, sensitizer

Chico Zapote

irritant (nasal)

Chinaberry

irritant, headaches

 

Cocobolo

irritant, sensitizer, nausea, asthma, pink eye

 

Cocuswood

irritant

Coolibah

irritant

Copaia(Jacaranda copaia)

irritant

 

Crow’s Ash(Flindersia australis)

irritant

 

Cuban Mahogany

irritant

Cypress

sensitizer

Cypress, Australian

irritant, asthma, swelling of eyelids, boils,NPC(rare)

 

Cypress, Gowen

irritant

Cypress, Leyland

irritant

Cypress, Mediterranean

irritant, rashes, headaches

Cypress, Mexican

irritant

Cypress, Monterey

irritant

Dahoma

irritant, sensitizer

 

Dead Finish(Acacia tetragonophylla)

irritant, splinters go septic

 

Douglas-fir

irritant, giddiness, runny nose, splinters go septic, nausea

 

Ebony (Diospyros genus)

irritant, sensitizer, pink eye

 

Ebony, Brown

irritant

Ebony, Macassar

irritant, sensitizer

Ekki

irritant

Elm (Ulmus genus)

irritant, sensitizer,NPC(rare)

 

Espave

irritant, asthma

 

European Beech

irritant, sensitizer,NPC(rare)

 

Eyoum(Dialium dinklagei)

irritant

 

 

Fir (Abies genus)

irritant

Fir, Balsam

irritant

Freijo

irritant, sensitizer, dryness/thirst

Garapa

irritant

Goncalo Alves

sensitizer

 

Grasstree(Xanthorrhoea spp.)

irritant

 

Greenheart

sensitizer, wheezing, severe throat irritation, splinters go septic, cardiac and intestinal disorders

 

Guanacaste

irritant

 

Gum, Lemon-Scented

irritant

Gum, Spotted

irritant, rashes

Gum, Yellow

irritant

 

Hackberry

irritant

Hazelnut

irritant

Hemlock, Eastern

irritant

Hemlock, Mountain

irritant

Hemlock, Western

irritant, runny nose,NPC(rare)

 

Hophornbeam

irritant

Hornbeam (Carpinus genus)

irritant

Idigbo

irritant

 

 

Imbuia

irritant

 

Indian Beech(Pongamia pinnata)

irritant

 

 

Indian Laurel

irritant

Ipe

irritant, headache, asthma, vision effects

 

Iroko

irritant, sensitizer, asthma, boils, giddiness,HP

 

Ironwood, Desert

irritant, sneezing, coughing

Jarrah

irritant

 

 

Jatoba

irritant

 

Jelutong

irritant

Juniper, Phoenician (Juniperus phoenicea)

irritant, headache, nausea

 

Juniper, western

irritant

 

Kahikatea(Dacrycarpus dacrydioides)

irritant

 

 

Karri

irritant

Katalox

irritant

 

Keruing

irritant

Kingwood

irritant, sensitizer, pink eye

 

Koto

irritant

Laburnum

constitutional effects (nausea, vomiting, headaches);direct toxin

N/A

Lacewood

irritant

 

Larch (Larix genus)

irritant, hives, lesions

Leadwood (Combretum genus)

irritant

Lebbeck

irritant

 

Lignum Vitae

irritant

 

Limba

irritant, hives, splinters go septic, asthma, bleeding of the nose and gums

 

 

Machiche

irritant

Magnolia (Magnolia genus)

asthma, runny nose

Mahogany, African

irritant, sensitizer,NPC(rare)

 

Mahogany,Honduran

irritant, sensitizer, boils, nausea, giddiness, asthma,HP

 

Mahogany, Santos

irritant

 

Makore

irritant, nausea, headache, giddiness, nervous system and blood effects

 

Mango

irritant

Mansonia

irritant, sensitizer, nausea, sneezing, headaches, nosebleeds, splinters go septic, asthma, giddiness, cardiac disorders

 

Maple (Acer genus)

irritant, sensitizer, asthma;HPin spalted maple

 

Maple, Queensland

irritant

 

Meranti (Shorea genus)

irritant

 

 

Merbau

irritant

 

 

Mesquite (Prosopis genus)

irritant

Messmate

irritant, asthma

 

Milky Mangrove(Excoecaria agallocha)

sap is poisonous,causes irritation to eyes and/or temporary blindness, headache, burning of throat, blistering of skin

 

Mimosa

irritant

Moabi

irritant (mucous membranes)

 

Molopangady(Breonia madagascariensis)

irritant, sores

 

Monkeypod

irritant

Mora

irritant

Movingui

irritant

Muhuhu(Brachylaena hutchinsii)

irritant

 

Mulga

irritant, headache, nausea, lesions,wood contains a virulent poisonous principle used for spear heads by aboriginals

 

Muninga

irritant, asthma, bronchitis

 

Myrtle

irritant, sensitizer

 

Myrtle, Tasmanian

irritant

 

Narra

irritant, asthma

 

Norway Spruce

irritant, asthma

 

 

Nyatoh

irritant

 

 

Oak (Quercus genus)

irritant, sensitizer, asthma,NPC(rare)

 

Obeche

irritant, sensitizer, runny nose, sneezing, hives, asthma

 

Okoume

irritant, cough, asthma, pink eye

 

Oleander(Nerium oleander)

irritant,nearly every part of the plant is toxic,cardiac effects

 

Olive

irritant, sensitizer

 

Opepe

irritant, sensitizer, nervous system effects, headaches, fever

 

Osage Orange

irritant, sap can cause dermatitis

 

Osage Orange, Argentine

irritant, sap can cause dermatitis

 

Padauk (Pterocarpus genus)

irritant, sensitizer, nausea, asthma

 

Palm(Arecaceae family)

irritant, constitutional effects

Parinari(Parinari spp.)

irritant

 

Partridgewood

irritant, hives, coughing

 

Pau Ferro

irritant, sensitizer

 

Pau Marfim(Balfourodendron riedelianum)

irritant

 

Pau Rosa

irritant

Pau rosa, Brazilian

irritant, constitutional symptoms

Pau Santo

irritant

Peroba Rosa

irritant, sensitizer, nausea, asthma

 

Persimmon

irritant

Pheasantwood

cavities in the wood can contain powder that is an irritant, skin discoloration

 

Pine (Pinus genus)

irritant, runny nose, asthma

 

Pine, Huon

irritant

 

Pistachio

irritant

Poison Walnut (Cryptocarya pleurosperma)

bark irritating to skin, dust may cause asthma, nausea, giddiness,sap is toxic and corrosive

 

Poplar

irritant, blisters, asthma, bronchitis

 

 

Primavera

irritant, sensitizer

Pulai, Indian

irritant

Purpleheart

irritant, sensitizer, nausea

 

Quebracho

irritant, sensitizer, nausea,NPC(rare)

 

Quina

irritant

 

Ramin

irritant, splinters go septic, asthma

 

Redwood

irritant, sensitizer, asthma,HP,NPC(rare)

 

Rengas

sap is strongly irritating, blisters, ulcers, fever, constitutional effects

Rhodesian Teak

irritant

Rose Butternut(Blepharocarya involucrigera)

irritant, pink eye

 

 

Rosewood (Dalbergia genus)

irritant, sensitizer, asthma

 

Rosewood, Brazilian

irritant, sensitizer

 

Rosewood, East Indian

irritant, sensitizer

Rosewood, Siamese

irritant, rash, hives, sensitizer

Rubberwood

irritant, sensitizer (latex allergy)

Saffron-Heart(Halfordia scleroxyloa)

irritant, splinters go septic, lung congestion

 

 

Santa Maria(Calophyllum brasiliense)

irritant, fainting, insomnia, kidney damage

 

 

Sassafras

sensitizer, nausea, respiratory,direct toxin,NPC(rare)

 

Sapele

irritant, sneezing

 

 

Satinwood, East Indian

irritant, headache, diarrhea, sensitizer

 

Satinwood, West Indian

irritant, diarrhea, rash, blisters, sensitizer

Shittim(Acacia seyal)

irritant, coughing

 

 

Silky Oak, Northern

irritant

Silky Oak, Southern

irritant, sap may cause blistering of skin, eyelid inflammation

 

Simarouba(Simarouba amara)

irritant

 

Siris, black

irritant

Sissoo

irritant

Slash Pine

irritant, asthma

 

 

Snakewood

irritant

 

Sneezewood

irritant, oils within the wood cause violent sneezing

Spruce (Picea genus)

irritant, sensitizer

 

Sucupira

irritant

Sugi

unspecified allergic reactions

 

Sumac (Rhus spp.)

irritant, bark may cause blisters

Sweetgum

irritant

Tali(Erythrophleum suaveolens)

irritant, headache, giddiness, nausea, disorders of bowels and stomach

 

Tambootie

irritant, diarrhea, blindness,direct toxin

 

Tatabu

irritant

Tatajuba

irritant

Teak

irritant, sensitizer, rash, nausea, asthma, vision effects, pink eye,HP

 

Thuya

irritant

 

Tiama(Entandrophragma angolense)

irritant

 

Turpentine

irritant, swelling

 

 

Tzalam

cold-like symptoms

Utile

irritant

 

Verawood

sneezing

Walnut, African

irritant, systemic effects,NPC(rare)

 

Walnut, Black

irritant, sensitizer,NPC(rare)

 

Walnut, English

irritant,NPC(rare)

 

Wamara

irritant

 

Wenge

irritant, sensitizer, splinters go septic, nervous system effects, abdominal cramps

 

Western Hemlock

irritant,NPC(rare)

 

Western Juniper (Juniperus occidentalis)

irritant

 

White Peroba(Paratecoma peroba)

irritant, sensitizer, asthma

 

 

Willow (Salix spp.)

sensitizer, nausea,NPC(rare)

Yew (Taxus spp.)

irritant, nausea, headache, cardiac effects,direct toxin

 

Yellowheart

irritant

Zebrawood

sensitizer

 

Ziricote

cross reactions possible once sensitivity to other woods have developed

Zitan

irritant, vomiting

 

What is a Sensitizer?

You’ve probably already heard the term desensitized—usually in reference to violent movies or images—meaning that we start off as naturally being sensitive to something, and upon more and frequent exposure, we become less and less sensitive to its effects.

Well, with some woods that have been classified as being a sensitizer, the opposite is true: the more we are exposed to a wood’s sawdust or other fine particles, the more sensitive we get to its exposure, and the more severe and adverse the reactions become.

If you ever have an allergic reaction to any wood that has been identified as a sensitizer, use extreme caution in handling or using that species (and related species) in future instances. Some have reactions so severe that they simply have had to stop and discontinue using certain wood species altogether. (Cocobolo is notorious in this regard.)

What is HP?

Hypersensitivity pneumonitis (also called extrinsic allergic alveolitis, EAA) is an inflammation of the alveoli within the lung caused by hypersensitivity to inhaled organic dusts. HP on PubMedHealth.

What is NPC?

Nasopharyngeal carcinoma, or sometimes called nasopharyngeal cancer. Basically, it is a cancer of the upper area of the pharynx or “throat,” where the nasal passages and auditory tubes join the remainder of the upper respiratory tract. NPC on MayoClinic.com.