Summary: Where Is Lead Found?
Lead Source Contaminated Media
Packages or storage containers
Household dust and soil
Imported foods, remedies, cosmetics, jewelry
Mining and smelting
Outdoor air and dust
Workplaces involving lead
Outdoor and indoor air and dust
Follow the link above for the full article as well as a very good printable resource on sources of lead toxicity.
Tip: Since calcium apposes leads absorption and storage (especially bone stores) getting adequate calcium is especially important for growing children. Raw milk, cheese, and yogurt as well as quality calcium supplements and bone broths are excellent sources of calcium.