BOTTOM ASH FROM BITUMINOUS COAL COMBUSTION

Hazard statements (CLP)

H350i

Code

Statements

H350i

May cause cancer by inhalation

SECTION 2: Hazards identification

Hazard statements

This material is comprised of residual solids (ash) from coal combustion. Composition of this material may vary dependent upon raw material source. Ash may contain sulfur and sulfur-containing compounds that are naturally occurring in coal. Dust inhalation and associated crystalline silica (Quartz) exposure are major health concerns. Quartz is toxic by inhalation or ingestion. Wet or fused-solid material presents minimal dust exposure risk. If this product is processed in dry form, measures may be necessary to control workplace airborne dust emissions below regulatory limits. This document addresses the potential for airborne dust emissions from dry product. Crystalline silica (quartz) represents the most hazardous constituent of this material. It has been associated with lung cancer, silicosis, and other respiratory diseases. Metal hydrates/hydroxides are typically alkaline and are thus defatting agents. Excessive prolonged skin contact can cause skin dryness, irritation, and cracking. Airborne dust is a respiratory irritant. Eye irritation may result from mechanical abrasion and/or product alkalinity. Ash dust is odorless; odor cannot be relied upon as a measure of exposure risk. Exposure issues should be addressed by a Certified Industrial Hygienist or other competent professional. If dust emissions and personal exposures cannot be effectively limited by process improvements or ventilation and other engineering controls, respiratory protection, eye protection, and other PPE must be utilized. EMERGENCY OVERVIEW: This material presents no risk of fire, explosion or spontaneous release under typical handling conditions. In the unlikely event of excessive acute exposure, emergency first aid and immediate medical attention should be administered. HMIS DESIGNATION: HEALTH 1 FLAMMABILITY 0 REACTIVITY 0

NFPA Ratings

HEALTH 1 FLAMMABILITY 0 REACTIVITY 0 The above designations apply to fused solid material. Exposure risk is dependent upon particle size and moisture content. Dry, finely-divided product presents an increased likelihood of airborne dust emissions. Health hazard is primarily associated with quartz content.

Principle Routes of Exposure

(Dry Product) Inhalation of airborne dust ACUTE EFFECTS OF OVEREXPOSURE: INHALATION: Acute exposures to high concentrations of airborne dust may result in respiratory irritation. Recurring acutely high dust inhalation may result in permanent respiratory system damage and other harmful effects. Effects of inhalation overexposure include irritation of the nose and throat, nausea, vomiting, diarrhea, abdominal pain and signs of nervous system depression (e.g. headache, drowsiness, dizziness, loss of coordination and fatigue), irregular heartbeats, pulmonary edema, weakness and convulsions. Refer to Section 11- TOXICOLOGICAL INFORMATION. EYE: Direct eye contact with airborne dust may cause eye irritation due to abrasive action and alkaline components. SKIN: Contact with wet product or dust may cause skin irritation or sensitization, possibly leading to dermatitis. INGESTION: Ingestion of this product in large quantity may cause nausea and/or vomiting. Other serious effects may occur if large amounts of product are swallowed. Ingestion is not considered to be a serious prevalent industrial exposure issue. Refer to Section 11- TOXICOLOGICAL INFORMATION.

Potential chronic health

OF OVEREXPOSURE EXCESSIVE AND REPEATED EXPOSURES MAY CAUSE: ?? Skin dryness/defatting/sensitization/dermatitis ?? Respiratory irritation, inflammation and permanent respiratory system damage ?? Eye inflammation, irritation of mucous membranes. CARCINOGENICITY: The carcinogenicity of this product as a whole has not been tested. For individual components, refer to

TOXICOLOGICAL INFORMATION

SYNERGISTIC MATERIALS: None known. (It is recognized that certain medications and metals may cause increased sensitivity to other substances.) SIGNS AND SYMPTOMS OF OVEREXPOSURE: ?? Redness, swelling, itching, and/or irritation of skin and eyes; dermatitis. ?? Defatting of skin; dryness, cracking. ?? Respiratory irritation; permanent respiratory system damage.

Medical Conditions Generally Aggravated by Exposure

Pre-existing allergies and respiratory disorders may be exacerbated by exposure to airborne dust. Pre-existing skin conditions (dryness, allergies) may be aggravated by contact with wet or dry product.