A 2025 study published in an indoor environment journal identified consistent volatile chemical markers for the mold species Aspergillus versicolor across different building materials, including pine and gypsum. These biomarkers held up regardless of the surface the mold was growing on, which could help investigators identify this species even when the substrate in a contaminated space is unknown. For occupants and clinicians, this type of research moves the field closer to more reliable, non-invasive mold identification methods.