What is the only way to confirm the presence of lead?

The presence of lead can only be confirmed through testing, which involves using specific methods and equipment designed to detect lead levels in various materials, such as paint, dust, and soil. Visual inspection might reveal potential areas where lead could be present, especially in older buildings, but it does not provide a definitive confirmation of lead presence. Odor detection is not a viable method for confirming lead, as lead is a colorless and odorless substance. Common knowledge about lead hazards can inform prevention and safety practices, but it cannot replace the need for empirical testing to ascertain lead's presence accurately. Therefore, testing is the only reliable method to confirm whether lead is present in a given environment.