Calculation of Remediation Cut-Off Value of Pb-Contaminated Sites Based on the Health Risk

摘要

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 μg/m and 2～10μg/L; ingestion of Pb from food by children of 0～6 years old is 10～25μg/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.