Highlights
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Trace element sources and exposures in gardens, chickens and eggs assessed.

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Soil Pb is significantly associated to chicken Pb exposure and egg Pb concentrations.

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Older, inner cities homes more likely to be impacted with elevated Pb values.

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Soil Pb needs to be < 117 mg/kg to retain egg Pb < 100 ?g/kg.

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Commercial eggs have lower concentrations of most trace elements, especially Pb.

https://www.sciencedirect.com/science/article/pii/S0269749122010120?via%3Dihub