What is tested with the aggressive air sample?

The aggressive air sample is specifically used to assess the presence of asbestos fibers in the air. This method is often employed in situations where there is a need to verify whether asbestos fibers are airborne, particularly after building materials have been disturbed or in areas where asbestos use was previously common. It helps in understanding the risk of exposure to airborne asbestos, which is crucial for ensuring safety and compliance with regulations.

While the final air quality level can be associated with aggressive air sampling results, the primary purpose of the aggressive sampling method is to detect and quantify asbestos fibers rather than simply determining an air quality level standard.

Testing for airborne dust particles and evaluating heating and ventilation effectiveness are different evaluations altogether. These processes do not specifically focus on asbestos detection and would typically utilize different methodologies or equipment suited for their respective analyses. Thus, identifying the presence of asbestos fibers is the central focus of aggressive air sampling, making it the correct answer in this scenario.