biological contamination definition
The contamination of a building environment caused by bacteria, molds and their spores, pollen, viruses, and other biological materials (e.g., animal and human dander insect and arachnid excreta). It is often linked to poorly designed and maintained HVAC systems.he contamination of a building environment caused by bacteria, molds and their spores, pollen, viruses, and other biological materials (e.g., animal and human dander insect and arachnid excreta). It is often linked to poorly designed and maintained HVAC systems.