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Int. J. Environ. Res. Public Health 2016, 13(11), 1111;

Identification of Potential Sources of Mercury (Hg) in Farmland Soil Using a Decision Tree Method in China

School of Geographic and Oceanographic Sciences, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
Department of Geography and Planning, Queen’s University, Kingston, ON K7L 3N6, Canada
Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, Nanjing 210093, China
Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
Author to whom correspondence should be addressed.
Academic Editor: Yu-Pin Lin
Received: 4 September 2016 / Revised: 2 November 2016 / Accepted: 2 November 2016 / Published: 9 November 2016
(This article belongs to the Section Environmental Health)
Full-Text   |   PDF [1195 KB, uploaded 9 November 2016]   |  


Identification of the sources of soil mercury (Hg) on the provincial scale is helpful for enacting effective policies to prevent further contamination and take reclamation measurements. The natural and anthropogenic sources and their contributions of Hg in Chinese farmland soil were identified based on a decision tree method. The results showed that the concentrations of Hg in parent materials were most strongly associated with the general spatial distribution pattern of Hg concentration on a provincial scale. The decision tree analysis gained an 89.70% total accuracy in simulating the influence of human activities on the additions of Hg in farmland soil. Human activities—for example, the production of coke, application of fertilizers, discharge of wastewater, discharge of solid waste, and the production of non-ferrous metals—were the main external sources of a large amount of Hg in the farmland soil. View Full-Text
Keywords: sources of Hg concentrations; farmland soil; decision tree; China sources of Hg concentrations; farmland soil; decision tree; China

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Zhong, T.; Chen, D.; Zhang, X. Identification of Potential Sources of Mercury (Hg) in Farmland Soil Using a Decision Tree Method in China. Int. J. Environ. Res. Public Health 2016, 13, 1111.

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