Pigmentation Alone Cannot Predict Whether Mold Requires IICRC S520 Intervention Standards
Black-colored mold does not automatically trigger remediation action limits. The color alone tells you nothing about spore-count levels, species identification, or whether measured baselines require intervention. Only laboratory analysis and comparison to IICRC S520 standards determine whether action is legally and health-wise required—a distinction homeowners often misunderstand when they spot dark colonies on surfaces. How Do Spore-Count Baselines Compare Against Legal