New York State Asbestos Investigator Practice Exam

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Which type of asbestos accounts for approximately 95% of asbestos found?

Chrysotile
Amosite
Crocidolite
Fibrous tremolite

The correct answer is: Chrysotile

Chrysotile is recognized as the most prevalent form of asbestos, constituting around 95% of the asbestos found in various materials. This type of asbestos is often referred to as "white asbestos" and is commonly used in a wide range of products such as insulation, roofing, and brake linings due to its heat-resistant properties and flexibility. The dominance of chrysotile in the asbestos market is significant as it is the most widely used type, which has implications for regulatory standards and health risk assessments. Its extensive use has led to comprehensive studies on its health effects, which are vital for individuals in the asbestos investigation field. While other types of asbestos, such as amosite (brown asbestos), crocidolite (blue asbestos), and fibrous tremolite also pose health risks, they are found in much smaller quantities in buildings and industrial applications. Understanding the prevalence of chrysotile aids investigators in assessing potential asbestos exposure risks effectively and in informing remediation efforts.