CHST Practice Test – Complete Exam Preparation

The correct answer reflects the stringent health standards set for the allowable airborne concentration of asbestos fibers, which is crucial for protecting worker health and safety in environments where asbestos may be present.

Having a maximum limit of 0.01 fibers per cm³ of air is based on extensive research that identifies lower exposure levels as necessary to minimize the risk of asbestos-related diseases, such as asbestosis or mesothelioma. This standard is designed to provide a margin of safety that accounts for the long latency periods of asbestos-related health effects, ensuring that concentrations remain well below levels that could contribute to adverse health outcomes.

The other options present higher limits that would not sufficiently safeguard against the inhalation of asbestos fibers, which is why they are not in line with established health regulations. Setting the standard at lower concentrations, such as 0.01 fibers per cm³, reflects a proactive approach to occupational health and safety.