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Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

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conducted on the soil samples. From this record, historic Pb concentrations and Pb accumulation<br />

rates were estimated. Present day concentrations in the <strong>for</strong>est soils ranged from 40 to 100 mg/kg,<br />

while a natural background concentration was estimated at

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