MYST GRANULAR

Potential Acute Health Effects

Eyes: Contact may cause mechanical irritation and possible injury. Skin: This product may irritate skin upon contact. Inhalation: Inhalation of excessive concentrations of dust may cause irritation or mucous membranes and upper respiratory tract. Ingestion: Not an intended route of exposure. Short term harmful effects are not expected. Ingestion of large quantities may be harmful. Chronic/Carcinogenicity: Inhalation of excessive concentrations of any dust may lead to lung injury. This product contains crystalline silica. Excessive inhalation of respirable crystalline silica may cause silicosis, a progressive, disabling and fatal disease of the lung. Symptoms may include cough, shortness of breath, wheezing and reduced pulmonary function. The international Agency of Research on Cancer (IARC), in Monograph 68 has concluded that crystalline silica inhaled in the form of quartz or cristobalite, from occupational sources is carcinogenic to humans (Group 1). However, in making the overall evaluation, the Working Group noted that carcinogenicity was not detected in all industrial circumstances studied. Carcinogenicity may be dependent on inherent characteristics of the crystalline silica or on external factors affection its biological activity or distribution of its polymorphs. The National Toxicology Program (NTP) classifies crystalline silica as reasonably anticipated to be a carcinogen. Because applications and exposure data