Plywood

SECTION 2: Hazards identification

OSHA Respiratory Sensitizer

Appearance/Odor

Particulate solid, light to dark in color. Color and odor depend on the wood species and age of particles. Particles can be generated by any manual or mechanical cutting or abrasion process performed on wood. Primary Health Hazards: The primary health hazard posed by this product is thought to be due to inhaling wood dust. Likely Exposure Modes: Ingestion: x Skin: x Inhalation: x Eye:

Medical Conditions Generally Aggravated by Exposure

Wood dust may aggravate pre-existing respiratory conditions or allergies. Signs and Symptoms of Exposure: Acute: Wood dust may cause eye irritation. Certain species of wood dust can cause allergic contact dermatitis in sensitized individuals. If inhaled, wood dust may cause respiratory irritation, nasal dryness, coughing, sneezing, or wheezing. Chronic: Wood dust, depending on the species, may cause allergic contact dermatitis and respiratory sensitization with prolonged, repetitive contact or exposure to elevated dust levels. Prolonged exposure to wood dust has been reported by some observers to be associated with nasal cancer. Carcinogenicity: x NTP: Wood dust, Known Human Carcinogen x IARC Monographs: Wood Dust, Group 1 OSHA Regulated: Not Listed NTP Per NTP’s Tenth Report of Carcinogens “Wood dust is known to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in humans. An association between wood dust exposure and cancer of the nose has been observed in many case reports, cohort studies, and case- control studies that specifically addressed nasal cancer. Strong and consistent associations with cancer of the nasal cavities and paranasal sinuses were observed both in studies of people whose occupations are associated with wood dust exposure and in studies that directly estimated wood dust exposure.” IARC – Group I: Carcinogenic to humans; sufficient evidence of carcinogenicity. This classification is primarily based on studies showing an association between occupational exposure to wood dust and adenocarcinoma to the nasal cavities and paranasal sinuses. IARC did not find sufficient evidence of an association between occupational exposure to wood dust and cancer of the oropharynx, hypopharynx, lung, lymphatic and hematopoietic systems, stomach, colon or rectum. Emergency Overview WARNING! MAY FORM COMBUSTIBLE DUST CONCENTRATIONS IN AIR (DURING PROCESSING).