Which factor is NOT a critical indicator of potential asbestos in a building?

Land use planning is not considered a critical indicator of potential asbestos presence in a building. Asbestos is primarily associated with the materials and methods used in construction, particularly in buildings constructed before the 1980s when asbestos use was prevalent.

Visual inspections are vital because they can reveal the presence of materials suspected to contain asbestos, such as certain types of insulation, floor tiles, and other commercial products. Similarly, understanding the construction materials used during the building's construction helps identify whether asbestos-containing materials were utilized. The type of building insulation can also provide critical insights, as various insulation types have commonly contained asbestos.

In contrast, land use planning involves broader considerations about zoning, land development, and regulatory compliance, which do not directly assess the actual materials present in buildings and therefore do not reflect the presence of asbestos.

By focusing on factors directly related to the building's structure and contents, one can more effectively identify potential asbestos risks, underscoring the importance of visual inspections, knowledge of construction materials, and insulation types in asbestos risk assessment.