WANG Qian1,2, LIU Xing1,2, ZHAO Yuan1,2, YUAN Quan1*
(1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China)
Abstract: With the rapid development of nanotechnology and the wide application of nanomaterials, natural minerals in the form of nanoparticles and artificial nanoparticles tend to be in soil environment and be accumulated in it in large quantities. After the inorganic nanoparticles being in the soil ecosystem, the soil porosity and permeability coefficients will be changed, and the physical and chemical properties of the soil may be affected by the combination or interaction of organic matters and inorganic nanoparticles. Inorganic nanoparticles can also directly or indirectly influence on soil animals and microorganisms, with dominant inhibition effect. The interaction between the size effect and high reactivity of nanoparticles and the microbial cells and small signal transduction molecules can affect biological activities or nutrients, and poison cells or change the community structures of microorganisms. Meanwhile, characteristics of nanoparticles, physicochemical parameters of soils (pH values, ionic strengths, water contents, mineral components, and organic matter contents), and microbial communities can also affect the environmental effects of inorganic nanoparticles in soils. In this paper, we have systematically expounded the environmental effects of inorganic nanoparticles after entering the soil ecosystem, and summarized influencing factors of the ecological effects by inorganic nanoparticles in the soil, and raised the questions and prospects for studying the ecological effects of nanoparticles.
Keywords: Inorganic nanoparticles; soil; environmental effects; microorganisms; influencing factors
ACTA MINERALOGICA SINICA Vol. 40, No.3, 2020, page 289-296
