Environmental Geochemistry of Toxic Elements in the Environment

Dear Colleagues,

Toxic elements are ubiquitous environmental pollutants with certain or possible carcinogenic and mutagenic effects. Toxic elements can originate from both anthropogenic and natural processes. Mining activities of ferrous and non-ferrous resources (i.e., As, Cd, Hg, Tl, and Sb) contribute greatly to anthropogenic processes of the toxic elements that occur in the environment. In addition, the geochemical weathering of rocks also drives toxic elements into soils and waters of high geological background areas. Toxic elements from anthropogenic and natural sources could migrate and transform across the hydrosphere, lithosphere, and biosphere. Multiple processes, including physical, chemical, and biological activities, drive geochemical cycles and environmental effects of toxic elements. At present, there are large uncertainties in the source, fate, and environmental effects of toxic elements across environmental compartments. Therefore, this Special Issue aims to solicit research from different disciplines and regions to improve our understanding of the geochemical cycling and environmental effects of toxic elements to support ecological restoration in diverse environments. Some topic examples that could be addressed in this Special Issue are the following:

1. Geochemical processes and fate of toxic elements in mining environment;
2. Natural enrichment of toxic elements in geologically high background areas and environmental impacts;
3. Geomicrobially driven biogeochemical cycles of toxic elements in the environment;
4. Bioremediation of toxic element pollution in soil and waters.

Prof. Dr. Tangfu Xiao
Dr. Mario Alberto Gomez
Dr. Yizhang Liu
Guest Editors

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