The Lead Distribution Characteristics and Bioavailability in Surface Sediments of the Collapse Lake
In order to analyze the distribution characteristics of lead,the paper takes surface sediments in collapse lake in Yangzhuang coal mine Huai Bei as the research object.Data are statistical analyzed by SPSS17.0.The results showed that the total lead concentration in surface sediments distribute spatial variation.The total lead concentration in northwest collapse lake is higher than that of central and eastern collapse lake,having the significant difference (P<0.05).Possible lead sources were mine waste water discharge,coal gangue pile of long-term leaching.The BCR sequential extraction showed that residual fractions>oxidizable fractions>reductive fractions>acetic acid fractions.Pb was dominated mainly by the fraction of residual Pb,and lower acetic acid fractions.The results indicated that lead bioavailability was low.
collapse lake total Pb concentration lead speciation analysis bioavailability BCR sequential extraction
LIU Fei ZHU Pengfei
College of Life Sciences, Anhui Key Laboratory of Plant Resources and Biology, Huaibei Normal University, Huaibei,China, 235000
国际会议
合肥
英文
810-813
2012-05-24（万方平台首次上网日期，不代表论文的发表时间）