doi:10.16186/j.cnki.1673-9787.2020.1.8

Received:2019/05/20

Revised:2019/07/03

Published:2020/01/15

Accumulation characteristics and sources analysis of heavy metals intopsoil of Tengzhou

WANG Min1, YAN Beibei1, QIN Pengyi2, GAO Zongjun1, FENG Guoping1, PANG Xugui3

1.School of Earth Science and Engineering， Shandong University of Science and Technology， Qingdao  266590 ， Shandong， China;2.Nuclear Industry Jingxiang Construction Group Co. ， Ltd. ， Huzhou  313001 ， Zhejiang， China;3.Shandong Institute of Geological Survey， Ji' nan  250013 ， Shandong ，China

Abstract:In order to understand the contamination and sources of heavy metals in the surface of Tengzhou area ，the contents of As，Cd，Cr，Cu，Hg，Ni， Pb and Zn in the soil of Tengzhou area were studied. On the basis of normal and log-normal analysis of deep and surface soil samples data. Al₂O₃ was selected as the reference index to obtain the background value of heavy metals， and the enrichment factors of soil heavy metals in the study area were counted to evaluate the heavy metal pollution level in the study area. Based on Pearson correlation analysis and factor analysis of soil heavy metal data， the pollution sources of heavy metals were analyzed. The results showed that the pollution grade of heavy metals in the topsoil was mostly non-polluted and slightly polluted ，while Hg and Cd were moderately polluted in some areas， among which Hg was even seriously polluted. Heavy metal pollution had reached moderate level and above， which mainly distributed in the central， southern and southeastern regions. The distribution of point pollution in the study area was relatively prominent， and the pollution level along the traffic was relatively high. The heavy metals in the topsoil of the study area mainly originated from natural soil-forming evolution factors and human-induced pollution factors such as transportation ，chemical fertilizers and pesticides， industrial and mining sewage.

Key words:soil;heavy metal pollution;enrichment factor;normal analysis;source analysis;Tengzhou

滕州表层土壤重金属累积特征及来源分析_王敏.pdf