Which of the following is a source of lead exposure?

• A. Glass beads
• B. Pesticides
• C. Lead objects
• D. Wood filler

Answer: (C)

Lead exposure comes from materials that contain lead releasing it into the environment, mainly through inhaled dust or ingested chips. Objects that contain lead are a classic source because they can shed tiny lead-containing particles during normal use, handling, or remodeling, which people—especially children—may inadvertently ingest. This is why older items and surfaces with lead compounds are a common concern. While some glass items are made with lead to give them certain properties and some historic pesticides used lead compounds, these are less universal exposure sources than lead-containing objects. Wood filler typically does not contribute meaningful lead exposure.