| Biological Disorder: |
A change in the biological ecosystem or mass in a building due to a disturbance. Education Note: Most biological disorders in buildings are a result of a flood or some other disaster produced by water or humidity. Biological disorder can be produced from events such as sewer line and toilet overflows, where the high concentration of biological waste disturbs the random selection and quantity of resident microorganisms through the addition of non-resident microorganisms that are pathogenic. |