Abstract
This paper conclude and determine the range of key parameters based on the effects of heavy metal Pb to Human blood-Pb health risk. According to China's reality, Pb levels in air, drinking water are 0.122~1.0 ug/m and 2~10ug/L; ingestion of Pb from food by children of 0~6 years old is 10~25ug/d. Pb cut-off value for residential land soil are calculated with the Integration Exposure Uptake Biokinetic Model (IEUBK). The result shows the Pb cut-off value for residual land is 294.5mg/kg. The result provides a reference for cut-off value of Content of lead in soil, and brings convenience for the research and practice of remediation Pb contamination in soil.
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