Recycled Asphalt Product (RAP)

SECTION 2: Hazards identification

EMERGENCY OVERVIEW WARNING Dust may irritate the eyes, skin and respiratory tract. Contains or may release hydrogen sulfide gas (H2S) when heated, which may accumulate in con- fined spaces. H2S fumes and vapors may be harmful or fatal if inhaled. Avoid breathing excessive dust. Breathing silica-containing dust for prolonged periods in the workplace can cause lung damage and a lung disease called silicosis. Several scientific organizations have classified crystalline silica as causing lung cancer in humans. Silicosis and lung cancer can result in permanent injury or death.

Potential health effects

Note: RAP is a recycled product and thus may contain trace amounts of heavy metals or other contaminants depending upon its previous use. This product is a solid, reducing the potential for fume exposure. If it is further subjected to mechanical forces (such as demolition or asphalt recycling work), dust particles will be generated. If heated, asphalt fumes may be generated. Effects Following Prolonged or Repeated Exposure: Exposure to high levels of respirable crystalline silica is associated with silicosis, lung cancer, and autoimmune disorders. Prolonged or repeated ex- posure to asphalt may cause skin disorders and effects on the lung. See Section 11 for additional information. Carcinogenicity: Crystalline silica-quartz, a component of this product, has been listed as a carcinogen by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP), or the Occupational Safety and Health Administration (OSHA). See Section 11 for additional information. Signs and Symptoms of Exposure: Symptoms of silicosis may include (but are not limited to): shortness of breath; difficulty breathing with or without exertion; coughing; diminished work capacity; diminished chest expansion; reduction of lung volume; right heart enlargement and/or failure. Prolonged and repeated exposure may cause skin disorders such as dermatitis (reddening, itching, cracking, inflammation), folliculitis, and acne-like lesions, bronchitis, pneumonitis (inflammation of the lungs), reduced appetite, and abnormal fatigue.

Principle Routes of Exposure

Eyes, skin, inhalation. Eye Contact: Dust particles can scratch the eye causing tearing, redness, a stinging or burning sensation or swelling of the eyes with blurred vision. Skin Contact: Dust particles can scratch and irritate the skin with redness, an itching or burning sensation, swelling of the skin and/or rash. Skin Absorption: Not expected to be a significant exposure route. Inhalation: Dusts may irritate the nose, throat and respiratory tract by mechanical abrasion. Coughing, sneezing and shortness of breath may occur. Emissions from heated material may have an unpleasant odor, produce nausea, headache, dizziness, and irritate the mucous membranes and upper respiratory tract. Toxic hydrogen sulfide may be released when heated. Unconsciousness and asphyxiation may occur in poorly-ventilated or confined spaces. See Sec- tion 11 for additional information. Note: Because this product is not heated under normal use and working conditions, exposure to asphalt emissions (fumes, vapors, or mists) are ex- pected to be minimal. Potential increases if product comes in contact with heated surfaces or is heated. Ingestion: Expected to be practically non-toxic. Ingestion of large amounts may cause gastrointestinal irritation including nausea, vomiting, diarrhea and block- age. 05/01/2012 MSDS 3239-045

Medical Conditions Generally Aggravated by Exposure

Pre-existing medical conditions that may be aggravated by exposure include disorders of the eye, skin and/or lung (including asthma and/or other breath- ing disorders).