What measurement unit is used in the NIOSH7400 report for asbestos concentration?

The NIOSH 7400 report specifically uses the unit "fibers per cubic centimeter" to express asbestos concentration. This measurement is crucial because it provides a standardized way to quantify airborne asbestos fibers, which is essential for assessing exposure levels in occupational settings. The focus on fibers per cubic centimeter allows for accurate monitoring of air quality and evaluation of potential health risks associated with asbestos exposure.

Other units, such as parts per million or milligrams per cubic meter, may be used for different substances or contexts but are not the standard for asbestos concentration in this specific report. Tons per acre is unrelated to airborne concentration measurements and is more relevant to land use or materials management rather than air quality monitoring.