Pollution is the introduction or presence of substances or conditions that adversely affect an environment. In a building assessment, specify the air, water or surface concern.
What this means at your property
The same word can describe smoke entering a room, contamination of water or residue on a property. Those are different problems, and a useful scope connects the source to the affected area and the proposed response.
What information helps define the work?
Record the event, location, suspected source and any existing test results. Ask the assessor to distinguish confirmed findings from unresolved questions and identify which specialist is responsible for further investigation.