Application of an enrichment factor in determining anthropogenic pollution of heavy metal in topsoil in Hebei plain
GUO Haiquan, HAO Junjie, LI Tiangang, LAI Yanling, KONG Fanhe, LIU Shuxing
Ecology and Environment . 2010, (4): 786 -791 .  DOI: 10.16258/j.cnki.1674-5906(2010)04-0786-06

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