Authors
Fang-Jie Zhao, Yibing Ma, Yong-Guan Zhu, Zhong Tang, Steve P McGrath
Publication date
2015/1/20
Journal
Environmental science & technology
Volume
49
Issue
2
Pages
750-759
Publisher
American Chemical Society
Description
China faces great challenges in protecting its soil from contamination caused by rapid industrialization and urbanization over the last three decades. Recent nationwide surveys show that 16% of the soil samples, 19% for the agricultural soils, are contaminated based on China’s soil environmental quality limits, mainly with heavy metals and metalloids. Comparisons with other regions of the world show that the current status of soil contamination, based on the total contaminant concentrations, is not worse in China. However, the concentrations of some heavy metals in Chinese soils appear to be increasing at much greater rates. Exceedance of the contaminant limits in food crops is widespread in some areas, especially southern China, due to elevated inputs of contaminants, acidic nature of the soil and crop species or cultivars prone to heavy metal accumulation. Minimizing the transfer of contaminants from soil to …
Total citations
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Scholar articles
FJ Zhao, Y Ma, YG Zhu, Z Tang, SP McGrath - Environmental science & technology, 2015