In a biological evaluation, exposure is measured by the concentration of lead in what?

Prepare for the Pennsylvania Lead Inspector Test. Study with flashcards and multiple choice questions, each question offers hints and explanations. Get ready to pass your exam!

Exposure is driven by how much lead is present in the material that could release it. The concentration of lead in the material tells you how much lead can be released into the environment and become available for ingestion or inhalation, which is what creates exposure. Media like air, water, or soil reflect lead after it’s released, but the starting point for exposure potential is the lead content of the material itself. In a biological evaluation, this material-based concentration is the most direct indicator of how much lead could exposure potential.