Detection of nanoparticles in Dutch surface waters
| Autor: | Martijn K. van der Lee, Greet van Bemmel, Anna K. Undas, Ruud J. B. Peters, Gerco C.T. den Hertog, Nino B.L. Milani, Hans Bouwmeester |
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| Rok vydání: | 2018 |
| Předmět: |
Silver
Environmental Engineering Materials science Novel Foods & Agrochains BU Toxicologie BU Contaminanten & Toxines Analytical chemistry Nanoparticle 02 engineering and technology 010501 environmental sciences Novel Foods & Agroketens 01 natural sciences Environmental Nanomaterials BU Contaminants & Toxins chemistry.chemical_compound Environmental Chemistry BU Toxicology Novel Foods & Agrochains Waste Management and Disposal 0105 earth and related environmental sciences Detection limit Range (particle radiation) BU Toxicology Single-particle ICP-MS 021001 nanoscience & nanotechnology Pollution BU Toxicologie Novel Foods & Agroketens chemistry Cerium dioxide Titanium dioxide Nanoparticles Particle Particle size 0210 nano-technology Surface water |
| Zdroj: | Science of the Total Environment, 621, 210-218 Science of the Total Environment 621 (2018) |
| ISSN: | 0048-9697 |
| Popis: | Nano-enabled consumer products are a likely source of nanoparticles in the environment and a number of studies have shown the release of nanoparticles from commercial products. Predicted environmental concentrations have been calculated but there is a need for real measurement data to validate these calculations. However, the detection of engineered nanoparticles in environmental matrices is challenging because of the low predicted environmental concentrations which may be in the ng/L range. In this study nanosized Ag, CeO2 and TiO2 have been measured in multiple surface water samples collected along the rivers Meuse and IJssel in the Netherlands using single-particle ICP-MS as measurement technique. Validation of the analytical method showed its capability to quantitatively determine nanoparticles at low concentrations. Concentration mass detection limits for Ag, CeO2 and TiO2 were 0.1 ng/L, 0.05 ng/L and 10 ng/L respectively. Size detection limits for Ag, CeO2 and TiO2 were 14, 10 and 100 nm. The results of the study confirm the presence of nano-sized Ag and CeO2 particles and micro-sized TiO2 particles in these surface waters. n-Ag was present in all samples in concentrations ranging from 0.3 to 2.5 ng/L with an average concentration of 0.8 ng/L and an average particle size of 15 nm. n-CeO2 was found in all samples with concentrations ranging from 0.4 to 5.2 ng/L with an average concentration of 2.7 ng/L and an average particle size of 19 nm. Finally, μ-TiO2 was found in all samples with a concentration ranging from 0.2 to 8.1 μg/L with an average concentration of 3.1 μg/L and an average particle size of 300 nm. The particle sizes that were found are comparable with the particle sizes that are used in nanomaterial applications and consumer products. The nanoparticle concentrations confirm the predicted environmental concentrations values in water for all three nanoparticles. |
| Databáze: | OpenAIRE |
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