The asbestiform varieties of chrysotile, amosite, crocidolite, tremolite, anthophyllite, and actinolite are examples of which of the following?

• A. Asbestos Abatement
• B. Different types of asbestos
• C. Air monitoring
• D. Permissible Exposure Limit

Answer: (B)

Asbestiform varieties are all different types of asbestos. Asbestos refers to a group of minerals that can form fibrous crystals, and the list you have includes chrysotile (the serpentine form) and amphibole minerals: amosite, crocidolite, tremolite, anthophyllite, and actinolite. Seeing these together shows a classification by mineral type, not a procedure, a measurement method, or a regulatory limit. Abatement refers to removing or containing asbestos materials; air monitoring is the practice of sampling air for fibers; the permissible exposure limit is the regulatory concentration workers may be exposed to. So the best answer is that these are different types of asbestos.