Dissolution is a dynamic process by which ions from a surface of a solid material are released over time into the background solution. Various physicochemical factors affect the dissolution of ENMs. Those include characteristics of particles (e.g. material, surface area, engineered surface coatings, aggregation state) as well as of the exposure media (pH, redox potential, dissolved salts & organics, temperature).


Occurs in

                    Water                             Sediment                                   Soil
 Wastewater treatment plants                 Biota


Fate descriptors 



Dissolution rate constant

\(\frac{d[M^{z+}]}{dt} = k_{diss}([M^{z}]_{eq}-[M^{z+}]_{t})\)

Dissolution rate

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Consult the NanoFASE Library to see abstracts of these deliverable reports: 
NanoFASE Report D8.1 Alignment between model requirements and experimental procedures

NanoFASE Report D8.2 Driving Forces of NM Behaviour in Natural Waters for Agglomeration and Transformation

Misra et al (2012) – Sci Tot Environ 438, 225-232. https://doi.org/10.1016/j.scitotenv.2012.08.066



Elena Badetti

University Ca' Foscari of Venice, Italy 



Julián Gallego

University of Gothenburg, Sweden




Frank von der Kammer

University of Vienna, Austria

Email: frank.von.der.kammer@univie.ac.at