The concentration-dependent behaviour of nanoparticles
Mohammed Baalousha A B D , Mithun Sikder A B , Ashwini Prasad C , Jamie Lead A B , Ruth Merrifield A and G. Thomas Chandler B
+ Author Affiliations
- Author Affiliations
A South Carolina SmartState Center for Environmental Nanoscience and Risk (CENR), Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA.
B Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA.
C School of Geography, Earth and Environmental Sciences, University of Birmingham, B15 2TT, UK.
D Corresponding author. Email: mbaalous@mailbox.sc.edu
Environmental Chemistry 13(1) 1-3 https://doi.org/10.1071/EN15142
Submitted: 8 July 2015 Accepted: 31 August 2015 Published: 8 October 2015
Journal Compilation © CSIRO Publishing 2016 Open Access CC BY-NC-ND
Environmental context. Studies of manufactured nanoparticles (NPs) in the environment have been performed almost exclusively at high NP concentrations. These data lead to misunderstandings related to NP fate and effects at relevant environmental concentrations, which are expected to be low. A better understanding of the concentration-dependent behaviour of NPs will improve our understanding of their fate and effects under environmentally realistic conditions.
Abstract. This rapid communication highlights the importance of nanoparticle concentration in determining their environmental fate and behaviour. Notably, two fate processes have been considered: dissolution and aggregation. The decrease in nanoparticle concentration results in increased dissolution and decreased aggregate sizes, inferring higher potential for environmental transport of nanoparticles.
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