Which type of sampling is NOT permitted for an air monitor?

Project sampling is the correct answer because it refers to a broader approach that often includes methods for gathering data on multiple aspects of a project rather than focusing specifically on compliance with air quality standards for asbestos. Air monitoring is typically focused on personal, clearance, or baseline sampling, which have specific regulatory frameworks and requirements.

Clearance sampling is conducted after asbestos abatement to determine if the area meets the required standards for re-occupation. Personal sampling is crucial for assessing the exposure of workers in real-time, which is essential for ensuring health and safety during asbestos removal or handling. Baseline sampling provides important reference data about air quality and asbestos levels before any disturbance occurs. Hence, the type of sampling most aligned with specific regulatory oversight and safety protocols in asbestos air monitoring does not encompass project sampling.