Birch
Betula spp. · Betulaceae · hardwood
Also known as: yellow birch, paper birch, silver birch, Baltic birch
Region: Northern temperate and boreal regions of Europe, Asia and North America
Birches give a pale, fine-textured hardwood. Yellow birch is a common North American furniture and cabinet wood, and silver and downy birch from northern Europe are the basis of Baltic birch plywood. It is also used for turnery, flooring and veneer.
Health hazards
-
Skin irritation
Evidence: Listed by an agency
UK HSE lists dermatitis when sawing birch lumber. The mechanism (irritant or allergic) is not specified.1
- Effects
- dermatitis
- Exposure route
- skin
- From
- dust
-
Asthma / respiratory allergy
Evidence: Reported
A Swedish study of furniture workers with nasal symptoms found a few with positive skin prick tests to wood dusts, which a later review lists as including birch. Species-level confirmation was not checked in the original paper.23
- Effects
- rhinitis, allergic sensitization
- Exposure route
- inhalation
- From
- dust
-
Cancer
Evidence: Applies to all wood dust
IARC classifies all wood dust as carcinogenic to humans, mainly linked to cancer of the nasal cavity and sinuses after long, heavy exposure. This applies to this wood like any other.4
- Effects
- nasal and sinus cancer
- Exposure route
- inhalation
- From
- dust
-
Cancer
Evidence: Listed by an agency
ACGIH names birch dust specifically as a suspected human carcinogen (A2).5
- Effects
- nasal and sinus cancer
- Exposure route
- inhalation
- From
- dust
Not finding a hazard listed here does not mean this wood is safe. All wood dust is hazardous; see how to protect yourself.
Exposure limits
| Body | Limit | Notes |
|---|---|---|
| ACGIH TLV | 1 mg/m³ (inhalable) | 8-hour TWA; ACGIH value as restated by OSHA. source |
| EU binding limit (hardwood) | 2 mg/m³ | Applies to all hardwood dust |
| UK WEL (hardwood) | 3 mg/m³ | Applies to all hardwood dust |
| NIOSH REL | 1 mg/m³ | Recommended limit for all wood dust |
Cancer classifications
- ACGIH: A2 source
Sources
- Health and Safety Executive. Toxic woods. Woodworking Information Sheet No 30 (Revision 1), WIS30(rev1). HSE; first published 11/2012. Withdrawn from hse.gov.uk (404 since c. Jan 2020); archived copy cited. Link
- Wilhelmsson B, Jernudd Y, Ripe E, Holmberg K. Nasal hypersensitivity in wood furniture workers. An allergological and immunological investigation with special reference to mould and wood. Allergy. 1984;39(8):586-595. Link
- Schlünssen V, Sigsgaard T, Raulf-Heimsoth M, Kespohl S. Workplace exposure to wood dust and the prevalence of wood-specific sensitization. Allergol Select. 2018;2(1):101-110. Link
- IARC Working Group on the Evaluation of Carcinogenic Risks to Humans. Wood Dust and Formaldehyde. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, Vol. 62. Lyon: International Agency for Research on Cancer; 1995. Link
- US Occupational Safety and Health Administration. Occupational Chemical Database: Wood Dust. Last updated 06/23/2023. Link
Last reviewed .