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Title: Impacts of Environmental Nanoparticles on Chemical, Biological and Hydrological Processes in Terrestrial Ecosystems

This chapter provides insights on nanoparticle (NP) influence or control on the extent and timescales of single or coupled physical, chemical, biological and hydrological reactions and processes that occur in terrestrial ecosystems. Examples taken from the literature that show how terrestrial NPs may determine the fate of the aqueous and sorbed (adsorbed or precipitated) chemical species of nutrients and contaminants, are also included in this chapter. Specifically, in the first section, chapter objectives, term definitions and discussions on size-dependent properties, the origin and occurrence of NP in terrestrial ecosystems and NP toxicity, are included. In the second section, the topic of the binary interactions of NPs of different sizes, shapes, concentrations and ages with the soil solution chemical species is covered, focusing on NP formation, stability, aggregation, ability to serve as sorbents, or surface-mediated precipitation catalysts, or electron donors and acceptors. In the third section, aspects of the interactions in the ternary systems composed of environmental NP, nutrient/contaminant chemical species, and the soil/sediment matrix are discussed, focusing on the inhibitory and catalytic effects of environmental NP on nutrient/contaminant advective mobility and mass transfer, adsorption and desorption, dissolution and precipitation and redox reactions that occur in terrestrial ecosystems. These three reviewmore » sections are followed by a short summary of future research needs and directions, the acknowledgements, the list of the references, and the figures.« less
Authors:
Publication Date:
OSTI Identifier:
1040988
Report Number(s):
PNNL-SA-69713
KP1702030; TRN: US201211%%318
DOE Contract Number:
AC05-76RL01830
Resource Type:
Book
Resource Relation:
Related Information: Handbook of Soil Sciences: Resource Management and Environmental Impacts, 2nd Edition, 4.1- 4.17
Publisher:
PM Huang, Y Li and ME Sumner; CRC Press, Boca Raton, FL, United States(US).
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ADSORPTION; BINDING ENERGY; CATALYSTS; CATALYTIC EFFECTS; DESORPTION; DISSOLUTION; ELECTRONS; FOCUSING; MASS TRANSFER; NUTRIENTS; ORIGIN; PRECIPITATION; REDOX REACTIONS; SOILS; STABILITY; TERRESTRIAL ECOSYSTEMS; TOXICITY; VALENCE nanoparticles, environmental processes and reactions,