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近年来职业性铅接触筛检指标的研究是劳动卫生职业病预防中的主要课题。血铅作为铅接触筛检指标，虽然较准确、敏感，但作为筛检指标不够简便、经济；尿铅、尿中δ－氨基－γ－酮戊酸（δ－ＡＬＡ）红细胞内游离原卟啉（ＦＥＰ）单独作为职业性铅接触筛检指标各有其优缺点...
In recent years, the occupational lead exposure screening index research is the main issue in occupational health and occupational disease prevention. Blood lead as a lead exposure screening index, although more accurate and sensitive, but as a screening index is not simple and economical; urinary lead, urinary δ-amino-γ-keto acid (δ-ALA) free intracellular protoporphyrin (FEP) alone has its advantages and disadvantages as occupational lead exposure screening index ...