Chromated Copper Arsenate (CCA) Pressure Treated Wood

Hazard statements

Category

Physical hazards

None Skin Irritation: Causes mild skin irritation 3 Eye Irritation: Treated and untreated wood dust causes eye irritation 2B Respiratory Sensitization: Treated and untreated wood dust may cause allergy or asthma 1 symptoms or breathing difficulties if inhaled Skin Sensitization: May cause an allergic skin reaction due to prolonged and/or repeated 1 contact with treated or untreated wood dust. (Various species of untreated wood dust can elicit allergic type skin irritation in sensitized persons.) Carcinogenicity: May cause cancer due to long term inhalation of treated or untreated 1A wood dust above threshold limits Specific Target Organ 3 Toxicity (Single Exposure): May cause respiratory irritation

Prevention

• Do not cut or machine wood (generate wood dust) until all safety precautions have been read and understood. • Wear protective gloves, long sleeve shirt and pants when handling treated or untreated wood. • Wash face, hands and any exposed skin thoroughly after handling and before eating, drinking or using the restroom • Contaminated work clothing should not be allowed out of the workplace • Cut or machine treated/untreated wood only outdoors or in a well-ventilated area • Avoid breathing dust when cutting or machining wood • In case of inadequate ventilation and levels exceed the recommended exposure limits, wear a NIOSH approved P95 or better particulate filter respirator

SECTION 2: Hazards identification

CONT’D_______________________________________________________

Response

• IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists get medical attention. • IF INHALED: Remove person to fresh air and keep comfortable for breathing. If experiencing respiratory symptoms or feeling unwell, call physician or Poison Control Center • IF ON SKIN: Wash with plenty of water • If skin irritation or rash occurs, get medical attention. • IF exposed or concerned: Get medical attention. • Take off contaminated clothing and wash it before reuse.

Storage

• None

Precautionary statements

Disposal • Dispose of material in accordance with local, state and federal regulations Other • If mixed with air in the presence of an ignition source, sawing, sanding or machining wood may form explosible dust-air mixture if dispersed • Acute Target Organ Toxicity: Skin, Eyes, Respiratory tract • Chronic Target Organ Toxicity: Kidney, Liver, Lungs, Lymphatic System, Respiratory system • Causes mild skin irritation (Prolonged and/or repeated contact with treated or untreated wood dust. Various species of untreated wood dust can elicit allergic type skin irritation in sensitized persons.) • Formaldehyde is a by-product of the untreated plywood or glued/laminated article and not part of the treatment. This information only applies to these products. • Odor: No odor to a woody smell Physical State: solid Immediate (Acute) Health Effects Inhalation: Airborne treated or untreated wood dust may cause nose, throat or lung irritation. Avoid breathing dust when cutting or machining wood. Wear respiratory protection if needed. Eye Contact: Treated or untreated wood dust may cause eye irritation. Wear Protective eyewear. Skin Contact: Handling wood may result in skin exposure to splinters. Wear protective gloves and clothing. Ingestion: Not anticipated to occur. A single ingestion of a very large dose of treated wood dust may require immediate medical attention. (NOTE: One ounce of treated wood dust per 10 pounds of body weight ingested may cause acute arsenic intoxication.) Acute Target Organ Toxicity: Skin, Eyes, Respiratory tract

Potential chronic health

Carcinogenicity: Carcinogenicity Data: IARC has classified untreated hardwood and hardwood/softwood mix wood dust as a Group 1 human carcinogen. The wood dust classification is based primarily on IARC's evaluation of increased risk in the occurrence of adenocarcinomas of the nasal cavities and para-nasal sinuses associated with occupational exposures to untreated wood dust. NTP has classified all untreated wood dust as a carcinogen. Cont’d Chronic Wood Various species of untreated wood dust can elicit allergic respiratory and skin responses in Dust Effects: sensitized persons. Chronic Target Organ Toxicity: Kidney, Liver, Lungs, Lymphatic System, Respiratory system