Creating a global database “Nanomaterials in the soil environment”: future need for the terrestrial ecosystem

Abstract

The revolutionary nanotechnology has generated environment safety concerns due to accumulation and toxicity behavior of nanomaterials. Given the wide application of various nanomaterials in daily products of our life, their environmental release is exceedingly obvious. Moreover, soil is the major sink for nanomaterials after their intentional or inadvertent release into the environment. Enormous attempts have apparently been made to study the impact of nanomaterials in the soil environment. Besides that, our understanding is inadequate due to disparities among results and effects of nanomaterials ranging from lethal, sub-lethal, to non-toxic. Subsequently, interpreting the real potential of nanomaterials to affect the soil environment and associated ecological processes is a challenging task. The interactions of different nanomaterials within different soil environments are crucial to authenticate toxicity behavior. Correspondingly, a global perspective is required for a comprehensive understanding of the environmental impact of nanomaterials. Therefore, we propose the need for a global database of “Nanomaterials in the soil environment” based on the estimates of nanomaterials flow among the three major components, viz. soil, soil microbes, and plants. Since the soil ecosystem is the foundation for many ecological processes supporting aboveground plant community and humankind, there is a need for this global database to precisely address the environmental issues. We propose that the empirical data from this global database would be helpful in bridging the knowledge gaps in the right way. Moreover, through this challenging task, soil policy can be developed to regulate nanomaterials usage and to protect soil health and associated biodiversity.

Keywords

Nanomaterials / Soil / Soil microbes / Plants / Global database / Environmental safety

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Funding

National Natural Science Foundation of China(31700457)

CAS President's International Fellowship Initiative (PIFI)(2019PC0095)

China Postdoctoral Science Foundation(2018M631112)

Yunnan Applied Basic Research Projects(2016FA017)